CN103957075A - Techniques for supporting relay operation in wireless communication systems - Google Patents

Techniques for supporting relay operation in wireless communication systems Download PDF

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Publication number
CN103957075A
CN103957075A CN201410145801.7A CN201410145801A CN103957075A CN 103957075 A CN103957075 A CN 103957075A CN 201410145801 A CN201410145801 A CN 201410145801A CN 103957075 A CN103957075 A CN 103957075A
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subframe
relay station
enb110
link
data
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CN103957075B (en
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R·帕兰基
K·巴塔德
N·布杉
A·D·坎得尔卡
T·姬
J·蒙托约
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Qualcomm Inc
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Qualcomm Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a bitmap may be sent by a base station and/or a relay station to identify subframes of at least two types in multiple radio frames. For example, the bitmap may indicate whether each subframe covered by the bitmap is of a first type or a second type. UEs may use the bitmap to control their operation. For example, a UE may perform channel estimation or measurement for the subframes of the first type and may skip channel estimation and measurement for the subframes of the second type. In another aspect, a base station may transmit data and/or control information on resources not used by a relay station to transmit a reference signal. This may avoid interference to the reference signal from the relay station, which may improve performance for UEs communicating with the relay station.

Description

Be used for the technology of the operation of relays of support of wireless communication system
This divisional application is that PCT international filing date is that on September 29th, 2009, national applications number are 200980139430.9, are entitled as the divisional application of the PCT country stage patent application of " for the technology of the operation of relays of support of wireless communication system ".
Background
I. field
The disclosure relates generally to communication, relates in particular to the technology for the operation of the relay station of support of wireless communication system.
II. background
Wireless communication system by widespread deployment to provide various Content of Communication such as voice, video, grouped data, information receiving, broadcast.These wireless systems can be can by share can with system resource support multiple users' multi-address system.The example of this type of multi-address system comprises code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system, orthogonal FDMA(OFDMA) system and Single Carrier Frequency Division Multiple Access (SC-FDMA) system.
Wireless communication system can comprise the several base stations that can support several subscriber's installations (UE) communication.This system also can comprise can improve the covering of this system and capacity and without the relay station of wired back haul link of potential costliness.Relay station can be that " decoding and forwarding " stands, it from station, upstream (for example can receive, base station) signal, the data of the signal that processing receives to recover to send in this signal, generate repeating signal based on the data that recover, and send this repeating signal to downstream stations (for example, UE).
Relay station can show as UE with base station communication and for base station on back haul link.Relay station also can be communicated by letter with one or more UE and can show as base station for UE on access link.But relay station typically can not transmit and receive on identical frequency channels simultaneously.Therefore, backhaul and access link can be by time division multiplexinges.In addition, system can have some requirement of the operation that can affect relay station.May wish to require to support in view of the transmission/reception restriction of relay station and other system the efficient operation of relay station.
General introduction
Various technology for the operation of relays of support of wireless communication system have been described herein.On the one hand, can send position mapping to identify in multiple radio frames the subframe of at least two types by base station and/or relay station.For example, position mapping can indicate each subframe that this mapping covers be the first kind or Second Type.The subframe of the first kind can be the conventional subframe of carrying control information, reference signal and data.The subframe of Second Type can be that (i) carries limited control information, limited reference signal and may there is no multicast/broadcast Single Frequency Network (MBSFN) subframe of data, or (ii) does not carry control information, do not carry reference signal and/or do not carry the blank subframe of data.UE can control its operation with this mapping.For example, UE can carry out channel estimating or measurement and can skip the subframe to Second Type the subframe of the first kind channel estimating and measurement.
On the other hand, data and/or control information can be transmitted in base station in the resource that is not used for transmitting reference signal by relay station.This can be avoided the reference signal from relay station to cause interference, and this measure can improve the performance with the UE of relay station communication.
Various other aspects of the present disclosure and feature are below described in further detail.
Accompanying drawing summary
Fig. 1 illustrates wireless communication system.
Fig. 2 and 3 illustrates respectively the exemplary frame structure for Frequency Division Duplexing (FDD) (FDD) and time division duplex (TDD).
Fig. 4 illustrates two exemplary conventional sub-frame formats.
Fig. 5 illustrates two exemplary MBSFN sub-frame formats.
Fig. 6 illustrates exemplary pilotaxitic texture.
Fig. 7 A illustrates the transfer of data via relay station on down link.
Fig. 7 B illustrates the transfer of data via relay station in up link.
Fig. 8 illustrates the position mapping of passing on dissimilar subframe.
Fig. 9 illustrates the code element timing shift between base station and relay station.
Figure 10 illustrates the downlink transmission with new control channel.
Figure 11 illustrates the communication of relay station.
Figure 12 illustrates the transfer of data with synchronous hybrid automatic repeat (HARQ).
Figure 13 illustrates the subframe timing skew between base station and relay station.
Figure 14 illustrates exemplary asymmetric downlink/uplink division.
Figure 15 and 16 illustrates respectively for process and device at wireless communication system broadcast sub-frame type information.
Figure 17 and 18 illustrates respectively process and the device for carrying out channel estimating or measurement.
Figure 19 and 20 illustrates respectively process and the device for avoiding the interference to reference signal.
Figure 21 and 22 illustrates respectively the process of communicating by letter and the device for facilitating wireless communication system.
Figure 23 illustrates the block diagram of base station, relay station and UE.
Describe in detail
Technology described herein can be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other system.Term " system " and " network " are often used interchangeably.Cdma system can be realized radiotechnicss such as universal terrestrial radio electricity access (UTRA), cdma2000.UTRA comprises wideband CDMA (WCDMA) and other CDMA variants.Cdma2000 is contained IS-2000, IS-95 and IS-856 standard.Tdma system can be realized radiotechnicss such as global system for mobile communications (GSM).OFDMA system can realize such as evolved UTRA(E-UTRA), Ultra-Mobile Broadband (UMB), IEEE802.11(Wi-Fi), IEEE802.16(WiMAX), IEEE802.20, etc. radiotechnics.UTRA and E-UTRA are the parts of Universal Mobile Telecommunications System (UMTS).3GPP Long Term Evolution (LTE) and senior LTE(LTE-A) be the new UMTS distribution version that uses E-UTRA.UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM describe in the document from " third generation partnership projects " by name tissue (3GPP).Cdma2000 and UMB describe in the document from " third generation partnership projects 2 " by name tissue (3GPP2).Technology described herein both can be used to system mentioned above and radiotechnics also can be used to other system and radiotechnics.For the sake of clarity, below describe some aspect of these technology for LTE, and in major part described below, use LTE term.
Fig. 1 shows wireless communication system 100, and it can be LTE system or other certain wireless systems.System 100 can comprise several evolved B node (eNB), relay station and other system entitys that can support several UE communications.ENB can be the station of communicating by letter with UE and also can be called as base station, B node, access point etc.ENB can provide the communication overlay to specific geographical area.In 3GPP, term " cellular cell " depends on the eNB subsystem that uses the context of this term can refer to the area of coverage of eNB and/or serve this area of coverage.ENB can support one or more (for example, three) cellular cell.
ENB can provide the communication overlay of the cellular cell to macro cells, Pico cell community, femtocell community and/or other types.Macro cells can cover relatively large geographic area (for example, the region that radius is thousands of meters), and can allow to be accessed by the UE with service subscription without restrictions.Pico cell community can cover relatively little geographic area and can allow and be accessed by the UE with service subscription without restrictions.Femtocell community can cover relatively little geographic area (for example, house) and can allow Constrained by with the related UE(in this femtocell community for example, the UE in closed subscriber group (CSG)) access.The eNB of macro cells can be called as grand eNB.The eNB of Pico cell community can be called as slight eNB.The eNB of femtocell community can be called as femto eNB or family expenses eNB.In Fig. 1, eNB110 can be the grand eNB for macro cells 102, and eNB114 can be the slight eNB for Pico cell community 104, and eNB116 can be the femto eNB for femtocell community 106.System controller 140 can be coupled to one group of eNB and coordination and the control to these eNB can be provided.
Relay station 120 can be from station, upstream (for example, eNB110 or UE130) receive the transmission of data and/or other information and downstream station (for example, UE130 or eNB110) send the station of the transmission of these data and/or other information.Relay station also can be called as relaying, relaying eNB etc.Relay station can also be the UE for other UE relay transmission.In Fig. 1, relay station 120 can be communicated by letter to facilitate communicating by letter between eNB110 and UE130 with eNB110 and UE130.
UE130,132,134 and 136 can be dispersed throughout in this system, and each UE stays fixed or moves.UE also can be called as terminal, mobile radio station, subscriber unit, platform etc.UE can be that cell phone, PDA(Personal Digital Assistant), radio modem, Wireless Telecom Equipment, portable equipment, laptop computer, wireless phone, wireless local loop (WLL) are stood etc.UE can be in down link and up link and eNB and/or relay station communication.Down link (or being forward link) refers to from eNB to relay station or communication link from eNB or relay station to UE.Up link (or being reverse link) refers to from UE to eNB or relay station or the communication link from relay station to eNB.In Fig. 1, UE132 can communicate by letter with eNB110 with up link 124 via down link 122.UE130 can communicate by letter with relay station 120 with access up link 154 via access downlink 152.Relay station 120 can be communicated by letter with eNB110 with backhaul uplink 144 via backhaul down link 142.
Generally speaking, eNB can with any number UE and any number relay station communication.Similarly, relay station can be communicated by letter with any number eNB and any number UE.For the purpose of simplicity, below most of description for communicating by letter via relay station 120 between eNB110 and UE130.
LTE utilizes OFDM (OFDM) and in up link, utilizes single carrier frequency division multiplexing (SC-FDM) on down link.Frequency range is divided into multiple (N by OFDM and SC-FDM fFTindividual) quadrature subcarrier, these subcarriers are also usually called as frequency modulation, frequency groove etc.Each subcarrier data available is modulated.Generally speaking, modulated symbol sends under OFDM in frequency domain, and in time domain, sends under SC-FDM.Interval between adjacent subcarriers can be fixed, and the sum (N of subcarrier fFT) can depend on system bandwidth.For example, N fFTsystem bandwidth for 1.25,2.5,5,10 or 20 megahertzes (MHz) can equal respectively 128,256,512,1024 or 2048.
System can be utilized FDD or TDD.For FDD, down link and up link are assigned with independent frequency channels.Downlink transmission and ul transmissions can be sent concomitantly on these two frequency channels.For TDD, down link and up link are shared identical frequency channels.Down link and ul transmissions can be sent out in different time intervals on this identical frequency channels.
Fig. 2 illustrates the frame structure 200 for FDD in LTE.Can be divided into taking radio frame as unit for each transmission time line of down link and up link.Each radio frame can have to be scheduled to last (for example 10 milliseconds (ms)), and can be divided into 10 subframes with index 0 to 9.Each subframe can comprise two time slots.Therefore each radio frame can comprise 20 time slots with index 0 to 19.Each time slot can comprise L code-element period, for example, is L=7 code-element period for normal cyclic prefix (as shown in Figure 2), or is L=6 code-element period for extended cyclic prefix.2L in an each subframe code-element period can be assigned index 0 to 2L-1.On down link, can in each code-element period of subframe, send OFDM code element.In up link, can in each code-element period of subframe, send SC-FDMA code element.
On down link in LET, eNB110 can transmit master sync signal (PSS) and secondary synchronizing signal (SSS) in the 1.08MHz of the center of the system bandwidth of the each cellular cell for this eNB.PSS and SSS can send respectively in the subframe 0 and 5 of each radio frame with normal cyclic prefix in code-element period 6 and 5, as shown in Figure 2.PSS and SSS can be searched for and catch for cellular cell by UE.ENB110 can be in some radio frame the time slot 1 of subframe 0 in code-element period 0 to 3 in transmit Physical Broadcast Channel (PBCH).Some system informations of PBCH portability.
ENB110 can transmit physical control format indicator channel (PCFICH) in first code-element period of each subframe, as shown in Figure 2.PCFICH can pass in subframe the number (M) for the code-element period of control channel, and wherein M can equal 1,2,3 or 4 and can change by subframe.ENB110 can transmit physics HARQ indicator channel (PHICH) and physical downlink control channel (PDCCH) (not shown in Fig. 2) in a M of an each subframe code-element period.PHICH portability is for supporting the information of HARQ.The information that PDCCH portability distributes about resource to UE and for the control information of downlink channel.A M of a subframe OFDM code element can be called as TDM and control code element.It can be the OFDM code element of carrying control information that TDM controls code element.ENB110 can transmit physical down link sharing channel (PDSCH) in all the other code-element periods of each subframe.PDSCH portability is given the data of the UE dispatching for the transfer of data on down link.
Fig. 3 illustrates the frame structure 300 for TDD in LTE.LTE supports several down link-uplink configuration of TDD.For all down link-uplink configuration, subframe 0 and 5 is used to down link (DL), and subframe 2 is used to up link (UL).Subframe 3,4,7,8 and 9 can be used to down link or up link separately, and this depends on down link-uplink configuration.Subframe 1 comprises three special field, and these three special field comprise for the down link pilot timeslot (DwPTS) of downlink control channel and transfer of data, there is no the protection period (GP) of transmission and the uplink pilot time slot (UpPTS) for Random Access Channel (RACH) or detection reference signal (SRS).Subframe 6 can comprise only DwPTS or all three special field or downlink subframe, and this depends on down link-uplink configuration.For different sub-frame configuration, DwPTS, GP and UpPTS can have different lasting.
On down link, eNB110 can transmit PSS in the code-element period 2 of subframe 1 and 6, transmits SSS, and transmit PBCH in the code-element period of the end of subframe 0 and 5 in the subframe 0 of some radio frame.ENB110 also can transmit PCFICH, PHICH, PDCCH and PDSCH in each downlink subframe.
Various signals in LTE and channel are entitled as " Evolved Universal Terrestrial Radio Access (E-UTRA) the public is retrievable; The evolved universal terrestrial radio electricity access of Physical Channels and Modulation((E-UTRA); Physical channel and modulation) " 3GPP TS36.211 in be described.Frame structure 200 and 300 is also described in 3GPP TS36.211.
LTE supports to transmit unicast info to particular UE.LTE also supports transmit broadcast message and transmit multicast information to UE group to all UE.Multicast/broadcast transmission can be called as MBSFN transmission.Can be called as conventional subframe for the subframe that sends unicast info.Can be called as MBSFN subframe for the subframe that sends multicast and/or broadcast message.
Fig. 4 illustrates two exemplary conventional sub-frame formats 410 and 420 for normal cyclic prefix.Available temporal frequency resource can be divided into Resource Block.Each Resource Block can cover 12 subcarriers in a time slot and can comprise several resource elements.Each resource element can cover a subcarrier in a code-element period, and can be used to send a modulated symbol, and modulated symbol can be real-valued or complex value.
Sub-frame formats 410 can be used by the eNB that is equipped with two antennas.Because the different reference signal in cellular cell can send and can is used for channel conditions or quality to do channel estimating and measurement by UE in code-element period 0,4,7 and 11.Reference signal is the known signal of transmitter and receiver both sides priori, and also can be known as pilot tone.Because the different reference signal in cellular cell is a distinctive reference signal in cellular cell, for example, use based on determined one or more sequence of symhols of cellular cell identity (ID) and generate.For the purpose of simplicity, the reference signal different because of cellular cell can be called reference signal for short.In Fig. 4, for thering is mark R agiven resource element, can be on this resource element send reference symbols sn from antenna a, and can on this resource element, not send modulated symbol from other antennas.Sub-frame formats 420 can be used by the eNB that is equipped with four antennas.Can in code-element period 0,1,4,7,8 and 11, send reference signal.
In the example of Fig. 4, in the conventional subframe with M=3, send three TDM and control code element.PCFICH can send in code-element period 0, and PDCCH and PHICH can send in code-element period 0 to 2.PDSCH can send in all the other code-element periods 3 to 13 of this subframe.
Fig. 5 illustrates two exemplary MBSFN sub-frame formats 510 and 520 for normal cyclic prefix.Sub-frame formats 510 can be used by the eNB that is equipped with two antennas.Can in code-element period 0, send reference signal.For the example shown in Fig. 5, M=1 and send TDM control code element in MBSFN subframe.Sub-frame formats 520 can be used by the eNB that is equipped with four antennas.Can in code-element period 0 and 1, send reference signal.For the example shown in Fig. 5, M=2 and send two TDM control code elements in MBSFN subframe.
Generally speaking, PCFICH can send in the code-element period of MBSFN subframe 0, and PDCCH and PHICH can send in code-element period 0 to M-1.Broadcast/multi broadcast information can send in the code-element period M to 13 of MBSFN subframe.Alternatively, in code-element period M to 13, can not send transmission.ENB can transmit MBSFN subframe by the periodicity of 10ms, for example, in the subframe t of each radio frame, transmit.It is the system information of MBSFN subframe that eNB can broadcast which subframe of instruction.
Generally speaking, MBSFN subframe is the subframe of carrying limited reference signal and limited control information in the control section of this subframe, and can in the data division of this subframe, carry or can not carry multicast/broadcast data.Stand (for example, eNB or relay station) can state that subframe is MBSFN subframe (for example,, via system information) to UE.These UE can expect reference signal and control information in the control section of MBSFN subframe subsequently.The broadcast data in the data division of UE expection MBSFN subframe is informed at this station individually (for example, via top signaling), and UE is subsequently by the broadcast data in anticipatory data part.The broadcast data in the data division of any UE expection MBSFN subframe can be selected not inform in this station, and UE is by the broadcast data in can not anticipatory data part.Can utilize these characteristics of MBSFN subframe to support operation of relays, as described below.
Figure 4 and 5 illustrate some sub-frame formats that can be used for down link.Also can for example use other sub-frame formats for more than two antenna.
Fig. 6 illustrates exemplary pilotaxitic texture 600.For FDD, pilotaxitic texture 600 can be used for each in down link and up link.For TDD, pilotaxitic texture 600 can be used for down link and up link.As shown in Figure 6, the S that definable has index 0 to S-1 interweaves, and wherein S can equal 6,8,10 or other certain values.Each interweaving can comprise the subframe of an interval S frame.Particularly, the s that interweaves can comprise subframe s, s+S, s+2S etc., wherein s ∈ 0 ..., S-1}.Interweave and also can be called as HARQ and interweave.
This system can be supported the HARQ to the transfer of data in down link and up link.For HARQ, transmitter can send one or more transmission of grouping until the received machine of this grouping is correctly decoded or suffers from other certain end conditions.It can be point group selection modulation and coding scheme (MCS) can be correctly decoded after a given number transmission that can be called as target termination.For synchronous HARQ, all transmission of this grouping can send in the single subframe interweaving.For asynchronous HARQ, each transmission of this grouping can be scheduled and send in any subframe.
Fig. 7 A illustrates the transfer of data with HARQ via relay station 120 on down link.ENB110 can have the data that will send to UE130, and can dispatch UE130 and on down link, carry out transfer of data.ENB110 can be at subframe t 1in on back haul link, send down link (DL) grant and data.Down link is granted can indicate institute's assign resources, selected modulation and coding scheme (MCS) etc.Relay station 120 can receive from the down link of eNB110 to be granted and transfer of data, and can grant and carry out deal with data transmission according to down link.Depend on decoded result, relay station 120 can be at subframe t 1in+Q, send acknowledgement (ACK) or negative acknowledgement (NAK), wherein Q is the delay about HARQ response.If receive NAK, eNB110 can be at subframe t 1in+S, retransmit these data, and if receive ACK, can transmit new data, wherein S is the number of subframes in interweaving.The transfer of data of being made by eNB110 for back haul link and the ACK/NAK feedback of being made by relay station 120 can be proceeded in a similar manner.
For access link, relay station 120 can be at subframe t 2middle transmission down link is granted and data, subframe t 2can with subframe t 1be offset suitable amount.For example, subframe t 2can be that wherein relay station 120 is successfully decoded from the subframe that is intended to the data that are sent to UE130 of eNB110.UE130 can receive from the down link of relay station 120 and grant and transfer of data, and grant and carry out deal with data transmission according to down link, and at subframe t 2in+Q, send ACK or NAK.If receive NAK, relay station 120 can be at subframe t 2in+S, retransmit these data, and if receive ACK, can transmit new data.The transfer of data of being made by relay station 120 for access link and the ACK/NAK feedback of being made by UE130 can be proceeded in a similar manner.
Fig. 7 B illustrates the transfer of data with HARQ via relay station 120 in up link.UE130 can have the data that will send in up link and can be at subframe t 3middle transmission resource request.Relay station 120 can receive resource request, and scheduling UE130 carries out transfer of data in up link, and at subframe t 3in+Q, sending up link (UL) grants.UE130 can be at subframe t 3in+S, grant to send transfer of data according to up link.Relay station 120 can be processed from the transfer of data of UE130 and can be depending on decoded result at subframe t 3in+Q+S, send ACK or NAK.If receive NAK, UE130 can be at subframe t 3in+2S, retransmit these data, and if receive ACK, can transmit new data.The transfer of data of being made by UE130 for access link and the ACK/NAK feedback of being made by relay station 120 can be proceeded in a similar manner.
For back haul link, relay station 120 can be at subframe t 4middle transmission resource request.ENB110 can receive resource request, and transfer of data is carried out at dispatching of relays station 120 in up link, and at subframe t 4in+Q, sending up link grants.Relay station 120 can be at subframe t 4in+S, grant to send transfer of data according to up link.ENB110 can process from the transfer of data of relay station 120 and can be at subframe t 4in+Q+S, send ACK or NAK.Relay station 120 can be depending on and receives ACK or NAK and at subframe t 4in+2S, retransmit these data or transmit new data.The transfer of data of being made by relay station 120 for back haul link and the ACK/NAK feedback of being made by eNB110 can be proceeded in a similar manner.
Fig. 7 A and 7B show and wherein can in evenly spaced subframe, send data and can send the synchronous HARQ of ACK information with there is constant offset amount Q place for the subframe that sends data.For the FDD in LTE, S can equal 8, and Q can equal 4.Data can send in a subframe interweaving, and these subframes can 8, interval subframe.For the TDD in LTE, S can equal 10, and Q can be variable and depend on selected down link-uplink configuration.S and Q also can have other values.For asynchronous HARQ, data can send in any subframe, and ACK information can send with there is fixing or variable offset amount place for the subframe that sends data.For under asynchronous HARQ and be also the transmission of different pieces of information under TDD, S and Q can be different.
Can be every several HARQ processes of link definition.HARQ process can on given interweaving, carry grouping all transmission until this grouping be correctly decoded, and the transmission of another grouping of portability subsequently.New grouping can send in the time that HARQ process becomes available in this process.
1. the use of the MBSFN subframe of blank subframe or 8ms
Relay station 120 typically can not transmit simultaneously and receive on identical frequency channels.Therefore, some be assigned to back haul links in available subframe and can be called as backhaul subframe.All the other subframes can be assigned to access link and can be called as access subframe.Relay station 120 can be communicated by letter with eNB110 and can in access subframe, be communicated by letter with UE130 in backhaul subframe.
On the one hand, relay station 120 can become blank subframe by backhaul sub-frame configuration on access link.In one design, blank subframe can not comprise transmission, there is no reference signal, there is no control information and there is no data.Relay station 120 can what not transmit to can monitor eNB110 on backhaul down link in each blank subframe.Relay station 120 can transmit the periodicity of blank subframe with the data of coupling HARQ transmission by the periodicity of S subframe.In one design, S can equal 8 subframes (or being 8ms) for FDD, or can equal 10 subframes (or being 10ms) for TDD.ENB110 also can become blank subframe by access sub-frame configuration.ENB110 can what not transmit to avoid causing interference on down link in each blank subframe.UE130 can be observed the less interference from eNB110 subsequently during the blank subframe of eNB110.
Blank subframe can be used to support operation of relays.Blank subframe also can be used to other objects, such as extending and restricted associated interference management for range.It is that wherein UE is connected to the scene in the detected all eNB of this UE with the eNB of lower path loss that range extends.This may cause wherein UE to be connected to the situation than some other eNB with the eNB of more weak signal.For example, in Fig. 1, UE134 can be connected to has lower path loss and the lower slight eNB114 that receives signal quality, and can be observed the high interference from grand eNB110.Extend for range, grand eNB110 can retain one group of subframe, and this group subframe can be by slight eNB114 for sending data to UE134.Grand eNB110 can become blank subframe by retained sub-frame configuration.ENB114 also can state that the subframe being used by grand eNB110 is blank subframe slightly, thereby UE134 will can not measure the high interference from grand eNB110.
Restricted association be wherein UE may be near femto eNB but may cannot access (for example,, because this femto eNB belongs to another user) scene of this femto eBN.UE can be connected to subsequently has lower another eNB that receives power.For example, in Fig. 1, UE136 may and possibly cannot access femto eNB116 near femto eNB116.UE136 can be connected to subsequently grand eNB110 and can be observed the high interference from femto eNB116.Femto eNB116 can transmit some blank subframe to avoid causing the interference to UE136.UE136 can communicate by letter with grand eNB110 subsequently in these blank subframe.
Blank subframe also can be used to transmit new control channel to support technology such as network multiple-input and multiple-output (MIMO), high-order mimo.Network MIMO refers to the transmission from multiple cellular cells to one or more UE.For network MIMO, can be blank subframe and will can be by these old-fashioned UE for channel estimating, Interference Estimation, measurement or other objects to old-fashioned UE advertisement by some subframes.Transmission for network MIMO can send and will can not affect old-fashioned UE in these subframes.
For FDD, LTE supports to have the periodic MBSFN subframe of 10ms at present.LTE also supports to have the periodic synchronous HARQ of 8ms at present.MBSFN subframe can not aimed at the subframe for transfer of data.For example, can be to the statement such as subframe 0,10,20 MBSFN subframe, and can in subframe 0,8,16 etc., send data by HARQ.
On the other hand, for FDD, can support the periodic MBSFN subframe with 8ms to mate the periodicity of the data that send with HARQ.LTE standard can be modified as supporting the MBSFN subframe of 8ms and/or other the suitable S values periodicity with matched data.
Relay station 120 can use some to interweave and use all the other to interweave to access link back haul link.The subframe interweaving for back haul link can be declared as MBSFN subframe.In some cases, relay station 120 may depart from normal division.For example, relay station 120 can be used as for example, in some subframe of the part interweaving of distributing to back haul link (, the subframe 0 and 5 in FDD) transmission PSS, SSS and PBCH.Relay station 120 can use conventional subframe but not MBSFN subframe to these subframes.In one design, relay station 120 can only transmit PSS and SSS for the conventional subframe of subframe 0 and 5.In another kind design, relay station 120 can transmit TDM control code element and PSS and SSS for the conventional subframe of subframe 0 and 5.
On the other hand, position mapping can be used to pass on the dissimilar subframe being used by relay station 120 or eNB110.Generally speaking, position mapping can cover any lasting, for example any number radio frame.Position mapping can be indicated the type of each subframe that this mapping covers.
Fig. 8 illustrates the design to the position mapping 800 of i+R-1 for R subframe i, and wherein R can equal 2,4 etc.Position mapping can comprise of each subframe to should position mapping covering.The position of corresponding each subframe for example can be set as the first value (for example, ' 0 '), to indicate conventional subframe or to be set as the second value (, ' 1 ') to indicate MBSFN subframe.If use blank subframe but not MBSFN subframe, the second value also can be indicated blank subframe.Position mapping can allow each subframe to be set as one of supported subframe type neatly.In one design, position is shone upon 40 that can cover 4 radio frames and can comprise corresponding 40 subframes.Position mapping can for example, send via broadcast channel (, PBCH) or other certain channels.
In another kind design, subframe can interweave and distribute for unit.Have and be appointed as can passing on via broadcast channel interweaving of subframe of MBSFN subframe (or being appointed as blank subframe).Being appointed as the subframe of MBSFN subframe (or being appointed as blank subframe) also can pass on by other modes.
Blank subframe and/or MBSFN subframe can for example, be communicated to UE via signaling (, position mapping).UE can learn blank subframe and/or MBSFN subframe.UE can not expect reference signal in blank subframe, and in MBSFN subframe, can expect limited reference signal.UE can not use blank subframe to carry out (in frequency and between frequency) measurement, channel estimating and Interference Estimation.UE can carry out measurement, channel estimating and Interference Estimation based on conventional subframe.UE can use or can not use that MBSFN subframe is measured, channel estimating and Interference Estimation.UE can and may also have the reference signal in MBSFN subframe to carry out channel estimating based on conventional subframe.
UE can and may also have the just suitable part of MBSFN subframe to carry out Interference Estimation based on conventional subframe.Interference can (i) change across MBSFN subframe because the TDM in MBSFN subframe controls the TDM structure of code element, and (ii) changes between MBSFN subframe and other subframes due to the TDM structure of MBSFN subframe.UE can carry out Interference Estimation by taking into account this interference variations.For example, have the interference higher than other OFDM code elements if UE knows OFDM code element 0, UE can be respectively OFDM code element 0 and the interference of other OFDM symbol estimation.UE can carry out Interference Estimation based on reference signal.UE can only obtain the Interference Estimation about OFDM code element 0 by the reference signal in OFDM code element 0.UE can use the reference signal sending in other OFDM code elements to obtain the Interference Estimation about these OFDM code elements.
2. mBSFN subframe and time migration
ENB110 can transmit TDM and control code element in a M of an each subframe code-element period.Relay station 120 also can transmit TDM and control code element in a M of an each subframe code-element period.Relay station 120 may receive TDM from eNB110 simultaneously and controls code element and transmit its TDM to its UE and control code element.
On the other hand, the timing of relay station 120 can with a timing slip N code-element period of eNB110, wherein N can be any suitable value.This timing offset can be selected such that the TDM of relay station 120 controls code element and/or reference signal is not controlled code element and/or reference signal crossover with the TDM of eNB110.
Fig. 9 illustrates the design of the code element timing shift between eNB110 and relay station 120.Generally speaking, the timing of relay station 120 can or postpone N code-element period with respect to the timing advance of eNB110 (as shown in Figure 9).This time migration can make relay station 120 can receive from the TDM of eNB110 and control code element.
ENB110 can transmit reference signal (RS) and data to relay station 120 in the subframe t of eNB110.Relay station 120 can show as UE and can not transmit reference signal, control information and/or data to its UE in the subframe q of relay station 120.Relay station 120 can be configured to its subframe q MBSFN subframe and can in subframe q, transmit one or more TDM and control code element.This can reduce wherein relay station 120 need to transmit the number of symbols of reference and can allow relay station 120 to monitor the more multiple-symbol being transmitted in subframe t by eNB110 to its UE.MBSFN subframe can allow to select more efficient time migration between relay station 120 and eNB110.
As shown in Figure 9, relay station 120 can only receive a 14-N the OFDM code element from eNB110 in subframe t, controls code element, reference signal and/or data because relay station 120 may transmit its TDM during last N the OFDM code element (it is corresponding to the subframe q+1 of relay station 120) of subframe t.Relay station 120 can transmit single TDM by the MBSFN sub-frame formats 510 in Fig. 5 and control code element, and N can equal 1.In one design, on down link, eNB110 can send data and reference signal to relay station 120 in a 14-N of a subframe t OFDM code element.Interleaving scheme can be across this 14-N OFDM code element (but not all 14 OFDM code elements) interleaved transmission the data to relay station 120.Similarly, in up link, relay station 120 can send data to eNB110 in 14-N OFDM code element (but not all 14 OFDM code elements).Interleaving scheme can be expanded the data that sent by relay station 120 in 14-N OFDM code element.For down link and up link, in 14-N the OFDM code element of timing offset with N code-element period, interweave and can improve data performance.
In one design, coherent subframe can be used to communicating by letter between eNB110 and relay station 120.This only may cause in a subframe but not in each subframe, lose N OFDM code element.For example, if relay station 120 is labeled as blank subframe by K coherent subframe and has the timing advance of N code element, subframe and relay station 120 that eNB110 has the individual relay station 120 therebetween of K-1 not transmit any reference signal, control information or data can be monitored eNB110 subsequently in all code-element periods.In the subframe after this K-1 subframe, relay station 120 can transmit and therefore can monitor only 14-N code element in last N OFDM code element.If relay station 120 is that MBSFN subframe but not blank subframe and the only TDM in each MBSFN subframe control code element and upload and send, N OFDM code element in its possible loss end subframe and an OFDM code element in other K-1 subframe by K sub-frame flag.
If support to have the periodic MBSFN subframe of 8ms, eNB110 can transmit to relay station 120 according to the HARQ timeline of 8ms.Relay station 120 can be for the subframe statement MBSFN subframe that wherein eNB110 transmits to relay station 120.If support to have the periodic MBSFN subframe of 10ms, eNB110 can transmit to relay station 120 according to the HARQ timeline of 10ms.ENB110 can guarantee not conflict for the resource of the UE of 8ms and the relay station of 10ms (for example,, for down link and up link control, data etc.) subsequently.For up link control resource, eNB110 can use different side-play amounts to the demodulated reference signal from relay station and UE (DMRS).Alternatively, relay station and UE can be by frequency division multiplexing (FDM).
MBSFN subframe or blank subframe and time migration can be used to support operation of relays, as described above.MBSFN subframe or blank subframe and time migration also can be used to interference management, for example, extend and restricted association for range.
3. mBSFN subframe and new control channel
On the other hand, eNB110 can not transmit new control channel, reference signal and data at the time durations transmitting to relay station 120 at relay station 120.This can allow relay station 120 to receive these control channels subsequently.Relay station 120 can become this type of sub-frame configuration MBSFN subframe, thereby it can only transmit TDM control code element and can monitor eNB110 by all the other code elements.
Figure 10 illustrates the design of the downlink transmission with new control channel of being undertaken by eNB110.ENB110 can transmit and transmit to its UE in subframe t+1 to relay station 120 in subframe t.Relay station 120 can be at subframe t(its can receive from eNB110 in q) corresponding to the subframe of relay station 120 and can subframe t+1(its can be corresponding to the subframe q+1 of relay station 120) transmit to its UE.The timing of relay station 120 can be aimed at the timing of eNB110.
In the design shown in Figure 10, eNB110 can transmit or not transmit TDM and control code element in a M of a subframe t code-element period.ENB110 can transmit new control channel and data to relay station 120 in all the other code-element periods of subframe t.Can be PCFICH supposition default value (for example, M=3), or PCFICH can be used as one of control channel and sends.ENB110 for example also can use, for the form of conventional subframe (, as shown in Figure 4) or new form and transmit reference signal (RS).ENB110 also can serve other UE and/or other relay stations in subframe t.The MBSFN sub-frame formats that can for example use relay station 120 transmits its TDM and controls code element in a M of a subframe t code-element period.Relay station 120 can switch to subsequently from eNB110 and receive transmission in all the other code-element periods of subframe t.
In the subframe that eNB110 can be forced to transmit at relay station 120, transmit to relay station 120.For example, eNB110 can at the subframe of relay station 120 0 and 5(, it may transmit PSS and SSS) in transmit.ENB110 subsequently therein relay station 120 not in the OFDM code element transmitting to relay station 120 transfer control channel and data.ENB110 may know the forced transport of relay station 120 and therefore can avoid transmitting to relay station 120 during these forced transport.
MBSFN subframe and new control channel also can be used to interference management (for example, extending and restricted association for range) and for supporting the technology such as network MIMO.For example, mastery interference source can become some sub-frame configuration MBSFN subframe.In these subframes, weak eNB can communicate by letter with its UE in the code-element period not used by this mastery interference source.
4. for disposing the mechanism of subframe 0 and 5
Relay station 120 can have the various restrictions that can affect its operation.For example, relay station 120 can be communicated by letter with eNB110 with up link via backhaul down link and can communicate by letter with UE130 with up link via access downlink, as shown in fig. 1.Because relay station 120 typically can not transmit and receive on identical frequency channels simultaneously, therefore back haul link and access link can be by time division multiplexinges.Relay station 120 only can be communicated by letter subsequently in each subframe on back haul link or access link.
LTE supports asynchronous HARQ and in up link, supports synchronous HARQ on down link.For HARQ, the transmission of data can be sent out and may be received in subframe t and make mistakes.Can in any subframe, be sent out for asynchronous HARQ the re-transmission of these data or can for example, in specific sub-frame (, subframe t+8), be sent out for synchronous HARQ.Which subframe is synchronous HARQ therefore can limit can be used to retransmit.
Relay station 120 can state that backhaul subframe is MBSFN subframe or is blank subframe.This can allow relay station 120 to transmit minimum control information and reference signal, as shown in Figure 5.But MBSFN subframe can be constrained to the periodicity (if do not support the MBSFN subframe of 8ms, in LTE distribution version 8) of 10ms.Relay station 120 can be required to transmit PSS and SSS in subframe 0 and 5.The available some modes of the various restrictions of relay station 120 are solved.
Figure 11 illustrates the design of the communication that has 10ms timeline of being undertaken by relay station 120.In this design, relay station 120 can have some backhaul subframes and each radio frame some access subframes for communicating by letter with UE130 for communicating by letter with eNB110 in each radio frame.Subframe 0 and 5 can be to allow relay station 120 in these subframes, to transmit the access subframe of PSS and SSS.Relay station 120 can transmit and/or receive from eNB110 to eNB110 in each backhaul subframe.Relay station 120 can transmit and/or receive from UE130 to UE130 in each access subframe.Relay station 120 can state that backhaul subframe is MBSFN subframe (as shown in Figure 11), and it can have the periodicity of 10ms, or can state that backhaul subframe is for being blank subframe.
In the example shown in Figure 11, the subframe 4,8 and 9 in subframe 0,4 and 5 and up link in the down link of each radio frame can be access subframe.Subframe 0,1,2,3,5,6 and 7 in subframe 1,2,3,6,7,8 and 9 and up link in the down link of each radio frame can be backhaul subframe.For access downlink, relay station 120 can transmit data and can in subframe 4,8 and 9, receive ACK information (for example, ACK or NAK) from UE130 to UE130 respectively in subframe 0,4 and 5.Because asynchronous HARQ is used to down link, therefore relay station 120 can send re-transmission in subframe 0,4 and 5.Access downlink can operate with 10ms timeline.For example, relay station 120 can send transmission in the subframe of given radio frame 0, in subframe 4, receives NAK, and in the subframe 0 of next radio frame, sends and retransmit subsequently.
For access up link, UE130 can send data and can in subframe 8,2 and 3, receive ACK information from relay station 120 to relay station 120 respectively in subframe 4,8 and 9.Relay station 120 can aim at the first transmission old-fashioned UE and can operate new-type UE 10ms timeline.In one design, if the first unsuccessful transmission, UE130 can be configured to transmit in other subframes.Because synchronous HARQ is used to up link, therefore UE130 can send re-transmission in specific sub-frame.For example, UE130 can send the transmission of grouping in the subframe of given radio frame 4, and can in subframe 8, receive ACK information.Because subframe 8 is MBSFN subframes, even if therefore this subframe is preserved for backhaul down link, relay station 120 also can send ACK information in this subframe on access downlink.UE130 can receive NAK and retransmit this data in follow-up subframe 2 in subframe 8.But this uplink sub-frames can be preserved for backhaul uplink.In this case, relay station 120 can (i) monitor UE130 and cancel its ul transmissions or (ii) continue transmit in backhaul uplink and ignore UE re-transmission until this re-transmission with consistent for the subframe that accesses up link.
In another kind design, can use " ACK and hang-up " process.For example, relay station 120 can stop dispatching UE130 in up link by the target of a transmission.UE130 can send the transmission of grouping.For example, if relay station 120 can not send the ACK information (, because relay station 120 may just be monitored on back haul link) to this transmission, UE130 can be used as this measure implicit expression ACK and can hang up its transmission.But UE130 does not abandon this grouping.If relay station 120 these groupings of decoding make mistakes, relay station 120 is follow-up dispatches the second transmission to this grouping in a subframe (relay station 120 can transmit the appointment to this subframe), and the hang-up being covered by this implicit expression ACK can be called subsequently.Similarly scene can occur in the time that eNB110 dispatches relay station 120 in up link.Relay station 120 can send this grouping but possibly cannot receive the ACK information from eNB110, because it may just transmit to UE130 on access link.Relay station 120 can be used as this measure implicit expression ACK but can not abandon this grouping.If enB110 this grouping of decoding makes mistakes, and it can be dispatched relay station 120 and in up link, retransmit this grouping.
Figure 12 has explained orally selection target being stopped based on transmission opportunity.Figure 12 shows between access link and back haul link the division different with the division shown in Figure 11.In the example shown in Figure 12, the subframe 0,1,3,4 and 8 in subframe 0,2,4,5,6 and 8 and up link in down link is used to access link, and all the other subframes are used to back haul link.Relay station 120 can be labeled as backhaul subframe blank subframe and can in these subframes, not transmit any control information or data to its UE.In one design, UE130 can use based on relay station 120 can with the determined target of ACK transmission opportunity stop sending grouping.ACK transmission opportunity can be corresponding to wherein sending ACK information (for example,, because synchronous HARQ requires) and operational subframe.In the example shown in Figure 12, UE130 can start the transmission to grouping in the subframe of radio frame i 0, and can in subframe 8, have transfer of data chance but there is no transfer of data chance in the subframe 6 of next radio frame i+1.Relay station 120 can have ACK transmission opportunity in the subframe of the subframe of radio frame i 4 and next radio frame 2.The target that relay station 120 can be two transmission of this point of group selection of UE130 subsequently stops.UE130 also can start the transmission to grouping in the subframe of radio frame i 1, and can stop due to the target that does not have transfer of data chance to have a transmission in subframe 9, as shown in Figure 12.
Relay station 120 can send ACK information after each transfer of data of UE130, for example, and as shown in two examples in Figure 12.In another kind design, relay station 120 possibly cannot send ACK information after each transfer of data, and can send ACK information in next ACK transmission opportunity.For example, UE130 can send the first transmission to grouping in the subframe of radio frame i 3, in subframe 7, do not receive ACK information, in the subframe 1 of next radio frame i+1, send the second transmission to this grouping, and in the subframe 5 of next radio frame, receive the ACK information to this grouping, as shown in the 3rd example in Figure 12.The target that relay station 120 can be two transmission of this point of group selection stops making the effective use to uplink resource.
Generally speaking, stop can be based on not being used for sending the first subframe of this grouping or determining based on when sending and/or receive ACK information for the target of grouping.In one design, ACK information can send after each transmission of this grouping.In this design, the first subframe that target stops being not useable for this grouping based on ACK transmission opportunity is wherein selected.In another kind design, ACK information can be delayed.In this design, if ACK transmission opportunity can be used for grouping after K transmission, the termination of the target of this grouping can be K transmission, and wherein K is more than or equal to any integer value of 1.In the exemplary division shown in Figure 12, relay station 120 can (i) stop and (ii) the target termination that divides two transmission of group selection for starting to send in subframe 0 or 3 for start the target of dividing a transmission of group selection of transmission in subframe 1,4 or 8.
In another design, UE130 can send grouping to relay station 120 by the mode that the termination of each grouping is aimed to the first transmission.In this case, relay station 120 will not need to monitor that other subframes are to find re-transmission.For the not grouping at the first transmission ending, UE130 can send re-transmission according to synchronous HARQ.Relay station 120 can receive the re-transmission being sent by UE130 but not monitor eNB110 in backhaul subframe.Alternatively, relay station 120 can be ignored the re-transmission being sent in backhaul subframe by UE130 and can wait for the later retransmission sending in access subframe, and this may cause higher latency.Generally speaking, relay station 120 can be whenever possible time just receives from the re-transmission of UE130 and can ignore the re-transmission that whatever the reason is can not receive.
For the example shown in Figure 12, relay station 120 can be in a similar manner subframe 1,3,7 with in 9 via backhaul down link and subframe 2,5,6,7 with in 9, communicate by letter with eNB110 via backhaul uplink.For backhaul down link, eNB110 can transmit data and can in subframe 5 and 7, receive ACK information to relay station 120 respectively in subframe 1 and 3.ENB110 also can send transmission under asynchronous HARQ in any suitable subframe.For backhaul uplink, relay station 120 can send data and can in subframe 9,1 and 3, receive ACK information to eNB110 respectively in subframe 5,7 and 9.The ACK transmission opportunity that the transfer of data chance that relay station 120 can be used based on relay station 120 and eNB110 can use sends grouping to eNB110.Some subframes may not have ACK transmission opportunity.Technology described above, such as ACK and hang-up code and termination target selection, can be used to not have the subframe of corresponding ACK transmission opportunity.Alternatively, relay station 120 can send grouping to eNB110 by the mode that the termination of each grouping is aimed to the first transmission.For the not grouping at the first transmission ending, relay station 120 can send re-transmission according to synchronous HARQ.In one design, relay station 120 can send and retransmits and can in access subframe, skip re-transmission in backhaul subframe.ENB110 can receive the re-transmission being sent by relay station 120 subsequently in backhaul subframe.In another kind design, relay station 120 can send and retransmit in backhaul and access subframe.In this design, relay station 120 can be skipped the monitoring to UE130 in access subframe.In another design, relay station 120 can use asynchronous HARQ and can may not be to send on for other backhaul subframes of the part interweaving of the first transmission to retransmit in up link.
For back haul link and access link, ACK information can for example, be sent out after the fixed number subframe (, 4 subframes) after corresponding transfer of data.This can limit and be used in the number that sends the subframe of data on backhaul and access link.In one design, eNB110 can (for example,, in the meeting of next ACK conveyer) send ACK information to relay station 120 in revocable subframe.For example, relay station 120 can be in subframe 1 to eNB110 send transfer of data and can be at subframe 6(but not subframe 5) in the ACK information of reception to this transmission.Similarly, relay station 120 can (for example,, in the meeting of next ACK conveyer) send ACK information to eNB110 in revocable subframe.For example, eNB110 can be in subframe 1 to relay station 120 send transfer of data and can be at subframe 6(but not subframe 5) in receive the ACK information to this transmission.Therefore, for can be different from UE in the case of dispatching old-fashioned/distribution version 8 to/from the subframe of relay station 120 sending/receiving ACK information but not relay station 120 by the subframe using.For backhaul down link and up link, relay station 120(or eNB110) can send signaling to pass on different subframes for sending ACK information.ENB110(or relay station 120) can in indicated subframe, receive subsequently ACK information.
Relay station 120 can be chosen in backhaul subframe and receive data and/or ACK information from UE130, and may in these subframes, send data and/or ACK information to eNB110.Relay station 120 can (for example, via control channel) be indicated this measure to eNB110, thereby eNB110 can wait for data and/or ACK information from relay station 120.ENB110 also can infer this measure by other means.For example, eNB110 can be respectively in response in subframe 0 and 5 from the transfer of data of relay station 120 to UE130 and know relay station 120 may monitor the ACK information from UE130 subframe 4 and 9.Relay station 120 can send data and/or ACK information subsequently in other subframes.To not use the resource retaining for relay station 120 in backhaul subframe if eNB110 knows relay station 120, eNB110 can dispatch other UE to utilize more completely available resource in these resources.
In another kind design, the transmission on back haul link and access link and re-transmission can send with 8ms timeline.One or more interweaves and can be used to access link, and subframe in should (all) interweaving can be access subframe.All the other interweave and can be used to back haul link, and these subframes in interweaving can be backhaul subframes.Relay station 120 can become MBSFN subframe or blank subframe by backhaul sub-frame configuration to can monitor efficiently eNB110.But in some subframes that interweave in backhaul, relay station 120 can be forced to transmit signal.For example, in subframe 0 and 5, relay station 120 can be required to transmit PSS, SSS etc.Relay station 120 can send transmission to UE130 in these backhaul subframes, converts these subframes to access subframe by this.
At any given time, it is movable on given interweaving, typically only having a HARQ process.In one design, multiple HARQ processes can interweave to provide the more multiprocessing time on identical interweaving.This HARQ process interweaves and can be applied to access link and back haul link.For example, eNB110 can transmit grouping 1 to relay station 120 in subframe 6 in the first downlink HARQ process.Relay station 120 can be forced in the subframe 0 of next radio frame and transmits and possibly cannot send ACK information to eNB110 to its UE.In the subframe 4 of this next radio frame, eNB110 can transmit new grouping (grouping 2) and retransmission packet 1 in the first downlink HARQ process not in the second downlink HARQ process.This interweaves and can between the grouping of the first and second downlink HARQ processes, replace subsequently.This can give 120 more times of relay station to eNB110 transmission ACK information.Only ability retransmission packet in the situation that receiving NACK of eNB110, improves operation of relays thus.
Relay station 120 can carry be initially the uplink sub-frames of the corresponding ACK information of downlink transmission in the subframe that back haul link retains in be its UE scheduling uplink data, as the same even if this uplink sub-frames is the part interweaving that retains for back haul link.In this case, relay station 120 can monitor transmission (and ul ack) to down link data in uplink sub-frames.In the time that backhaul subframe is marked as blank subframe, relay station 120 just sends the ACK information to grouping when can be only consistent with access downlink subframe in the position of ACK.If backhaul subframe is configured to MBSFN subframe, relay station 120 can send the ACK information to ul transmissions.
Even for 8m stimeline, relay station 120 also can transmit PSS and SSS in the subframe of each radio frame 0 and 5.If given subframe 0 or 5 is positioned at backhaul and interweaves above, relay station 120 can be skipped and the communicating by letter and can transmit to its UE in backhaul subframe of eNB110, convert this subframe to access subframe by this.In this case, relay station 120 possibly cannot receive from eNB110 during this subframe.If eNB110 has the ACK information that will send to relay station 120 in this subframe, eNB110 can be by the transmission delay to this ACK information until next backhaul subframe.Similarly, if relay station 120 has the ACK information that will send to eNB110 for the uplink sub-frames of access link, relay station 120 can be by the transmission delay to this ACK information until next backhaul subframe.In another kind design, relay station 120 can be skipped forced transport, such as PSS and SSS in the subframe 0 and 5 as backhaul subframe, and can change into eNB110 and communicating by letter.
In one design, ACK iteration scheme can be used to guarantee transmit ACK information in subframe that UE130 monitors at relay station 120.UE130 can have the ACK information that will send in backhaul subframe.Have the possibility that relay station 120 may monitor access link but not communicate by letter with eNB110 on back haul link, UE130 can send ACK information in this subframe.Alternatively or addedly, in next access subframe that UE130 can will monitor at relay station 120, send ACK information.UE130 can send the ACK information to multiple groupings in given subframe, the ACK information that for example will send in current subframe and the ACK information that will send, repeat in current subframe in previous subframe.
5. subframe skew/periodically control channel
On the other hand, the timing of relay station 120 can with a timing slip integer subframe of eNB110.Subframe skew can allow relay station 120 transmit PSS, SSS and PBCH and also receive PSS, SSS and PBCH from eNB110 to its UE.
Figure 13 illustrates the design of the subframe timing skew between eNB110 and relay station 120.The timing of relay station 120 can or shift to an earlier date an integer subframe (for example a, subframe) with respect to the constant time lag of eNB110 (as shown in Figure 13).ENB110 can transmit PSS, SSS and may also have PBCH in its subframe 0 and 5, and this subframe 0 and 5 can correspond respectively to the subframe 9 and 4 of relay station 120.Relay station 120 can receive PSS, SSS and may also have PBCH from eNB110.Relay station 120 can transmit PSS, SSS and PBCH in its subframe 0 and 5, and this subframe 0 and 5 can correspond respectively to the subframe 1 and 6 of eNB110.
As shown in Figure 13, the skew of the subframe between eNB110 and relay station 120 can cause eNB subframe 0 to be equal to relay sub-frame k, wherein k ≠ 0.Subframe skew can allow relay station 120 to monitor PSS, SSS and the PBCH from eNB110.Subframe skew also can allow eNB110 at relay station 120 by dispatching patcher block of information (SIB) in monitoring the subframe of eNB110.In some cases, subframe skew possibility deficiency is so that relay station 120 for example receives PSS, SSS, PBCH and/or SIB(, for the wherein infeasible TDD operation of subframe skew possibility).In these cases, PSS, SSS, PBCH and/or SIB can send to allow relay station 120 to receive them in independent channel.Alternatively, relay station 120 can periodically be left (for example, not transmitting data to UE130) under order and receive this type of transmission from eNB110.
Relay station 120 can and/or can transmit periodically control channel to eNB110 from UE130 receiving cycle control channel.Periodically control channel portability CQI (CQI) information, detection reference signal (SRS) etc.LTE supports 2,5,10,20 and the periodicity of 40ms for periodicity control channel at present.
On access link, relay station 120 can monitor subframe by the periodicity of 8ms.Periodically control channel can send to guarantee that the every 8ms of relay station 120 just can receive these control channels by the periodicity of 2ms.Alternatively, UE130 can be with 5,10ms or other certain periodicity of lasting sends periodically control channel.Relay station 120 can monitor from the periodicity control channel of UE130 or wait until periodically control channel with to access subframe consistent.
In another kind design, can support 8m for periodicity control channel speriodicity or periodic other certain integer multiples of data that send with HARQ.Each transmission of this periodicity control channel that can allow relay station 120 to receive to be sent by UE130, this UE transmission that can avoid waste.This also can allow eNB110 to receive each transmission of the periodicity control channel being sent by relay station 120.
6. asymmetric backhaul/access is divided
On the other hand, can adopt the asymmetric downlink/uplink of back haul link and access link to divide to realize the effective use to resource.The pattern that this division can repeat based on every S subframe, wherein S can equal 8,10 etc.For down link, S subframe can be divided into and make U dLindividual subframe is used to backhaul down link and V dLindividual subframe is used to access downlink, wherein S=U dL+ V dL.For up link, S subframe can be divided into and make U uLindividual subframe is used to backhaul uplink and V uLindividual subframe is used to access up link, wherein S=U uL+ V uL.Divide U for asymmetric downlink/uplink dL≠ U uLand V dL≠ V uL.
Figure 14 illustrates the example that asymmetric downlink/uplink is divided.In this example, S equals 8, uses backhaul/access of 5:3 to divide, and use backhaul/access of 4:4 to divide to up link to down link.For the purpose of simplicity, backhaul/access downlink that Figure 14 shows for 5:3 is divided, relay station 120 (i) receives from eNB110 in subframe 0 to 4 on backhaul down link, and (ii) in subframe 5 to 7, on access downlink, transmits to UE130.Figure 14 also shows for backhaul/access up link of 4:4 and divides, relay station 120 (i) transmits to eNB110 in subframe 0 to 3 in backhaul uplink, and (ii) in subframe 5 to 7, in access uplink frame, receives from UE130.As shown in Figure 14, relay station 120 can transmit and receive in each subframe except subframe 4 on different frequency channels, and can on two frequency channels, receive in subframe 4.Therefore relay station 120 can meet the requirement that does not transmit simultaneously and receive on identical frequency channels.Generally speaking, can be across 8 subframe distribution for the subframe of backhaul and access downlink, and also can be across 8 subframe distribution for the subframe of backhaul and access up link, thereby obey above-mentioned transmission/reception requirement.
Backhaul/access to down link and up link is divided and can be determined in various manners.In one design, the backhaul/access to every link is divided and can be determined based on channel conditions.For example, more subframe can be used to have the link of poor channel situation to meet the data demand to this link.Alternatively, more subframe can be used to have the link of better channel conditions to improve throughput.In another kind design, the data demand can be depending on this link is divided in the backhaul/access to every link, and the latter can and then be depended on the number of serviced UE and the data demand of each UE.For example, eNB110 can serve many UE and relay station 120 can be served one or several UE.In this case, more subframe can be used to backhaul down link and up link, and less subframe can be used to access downlink and up link.Generally speaking, can support any backhaul/access to divide for down link and up link.In addition, MBSFN subframe can be used to support any backhaul/access to every link to divide.MBSFN subframe can reduce the transmission quantity that relay station 120 makes and can make can monitor more efficiently eNB110 in backhaul downlink subframe.For the MBSFN subframe that back haul link retains also can be supported the communicating control information to relaying UE.Therefore,, for access link, on scheduling ul transmissions and transmission, the impact of the ACK information on ul transmissions may be very little.MBSFN subframe can allow the efficient operation of relay station 120, even as the same under the asymmetric division of up link and downlink subframe.
In the one design shown in Figure 14, asymmetric backhaul/access is divided can be by interweaving to reach for the different numbers of different link assignment.In another kind design, asymmetric backhaul/access is divided can be by reaching the sub-sampling interweaving.For example, the given subframe that interweaves middle even numbering can be used to back haul link, and this subframe of very numbering in interweaving can be used to access link.Relay station 120 can know this only have in interweaving subframe alternately to can be used for access link and the subframe that can replace at these in receive transmission from UE130.Relay station 120 can be correspondingly for UE130 selects modulation and coding scheme.For example, relay station 120 can aim at after the first transmission from UE130 stopping.
Due to asymmetric division, in order to dispatch UE130 and/or the transmission ACK information corresponding with ul transmissions on access link, relay station 120 can for back haul link retain subframe in communicating control information.If relay station 120 is back haul link use MBSFN subframe, relay station 120 can send for the ACK information of the transfer of data receiving from UE130 and other control informations such as up link is granted in any subframe.In this case, relay station 120 can be in first or two the OFDM code elements of backhaul downlink subframe that are labeled as MBSFN subframe by relay station 120 communicating control information and reference signal, and can monitor eNB110 with all the other code-element periods in this subframe.Also can be used to send ACK information, permission and/or other information to/from UE that can these control channels of reception/transmission for the new control channel of up link and/or down link.
In back haul link, for up link and/or down link, new control channel can be used to send ACK information, permission etc.New control channel can (for example,, for the transfer of data sending in subframe t, can send ACK information) or send in different subframes in given sub-frame in subframe t+4.Backhaul/access downlink for the 5:3 shown in Figure 14 is divided, and can in one of these 4 backhaul uplink subframes, send the ACK information of extra backhaul downlink subframe 4.
7. tDD postpones
LTE supports several down link-uplink configuration of TDD.Table 1 has been listed the down link-uplink configuration of LTE distribution version 8 supports and the sub-frame allocation for each configuration is provided.In table 1, " D " represents downlink subframe, and " U " represents uplink sub-frames, and " S " represents to comprise the special subframe of the DwPTS shown in Fig. 3, GP and UpPTS field.
Table 1-is for down link-uplink configuration of TDD
Can select specific down link-uplink configuration to use.Down link and uplink sub-frames available in selected down link-uplink configuration can be assigned to back haul link and access link, and back haul link and access link can be by time division multiplexinges.In one design, can be for backhaul subframe statement blank subframe, thereby the UE being served by relay station 120 can be in these subframes inertia.In another kind design, MBSFN subframe can be used to backhaul subframe.
Relay station 120 can transmit PSS, SSS and may also have PBCH in subframe 0,1,5 and 6.Relay station 120 can be avoided on access downlink, transmitting to avoid right during backhaul uplink subframe enB110 causes high interference.If relay station 120 can transmit in backhaul uplink subframe on access downlink---it will can not cause high interference to eNB110, if the downlink antenna bundle pattern of for example relay station 120 can provide sufficient RF to isolate to avoid upsetting eNB110.Relay station 120 also can only be dispatched its UE in the subframe that is used for up link by eNB110 and carry out ul transmissions, thereby the UE that its UE can avoid subtend eNB110 to transmit causes interference.
Table 2 shows and meets constraint described above and can be selected to some backhauls-access configuration using.In table 2, backhaul-access configuration X or XY are based on down link-uplink configuration X.Y represents one of multiple alternative (if available) configuring X.For every kind of backhaul shown in table 2-access configuration, distribute to back haul link subframe band shade illustrate, and the subframe of distributing to access link is not with shade and is illustrated.
Table 2-is for backhaul-access configuration of TDD
Table 3 is listed the number of sub frames that is configured for every link for every kind of backhaul-access in table 2.
Table 3-is the number of sub frames for every link for TDD
Figure 15 shows the design for the process 1500 at wireless communication system broadcast sub-frame type information.Can generate the position mapping that covers multiple radio frames (for example, 4 radio frames), wherein each radio frame comprises multiple subframes (frame 1512).Position mapping can identify in these multiple radio frames the subframe of at least two types.This mapping can be transmitted to UE(frame 1514).In one design, the subframe of at least two types can comprise that (i) is with the MBSFN subframe of limited control information and/or limited reference signal and (ii) with the conventional subframe of control information, reference signal and data.In another kind design, the subframe of at least two types can comprise that (i) is without the blank subframe of transmission and (ii) conventional subframe.In one design, position mapping can generate and be transmitted to UE by relay station.In another kind design, position mapping can generate and be transmitted to UE by base station.
Figure 16 shows the design for the device 1600 at wireless communication system broadcast sub-frame type information.Device 1600 comprises: for generating the module 1612 of the position mapping that covers multiple radio frames, each radio frame comprises multiple subframes, wherein the subframe of at least two types in these multiple radio frames of this mapped identification; And for this mapping being sent to the module 1612 of UE.
Figure 17 shows the design of the process 1700 for carry out channel estimating or measurement at wireless communication system.Process 1700 can be carried out by standing, and this station can be relay station, UE or other certain entities.This station can receive the position mapping (frame 1712) of the subframe (for example, conventional subframe) of the mark first kind and the subframe (for example, MBSFN subframe or blank subframe) of the Second Type different from the first kind.The subframe of the first kind and the subframe of Second Type can be specified by base station or other certain designated entities.This station can receive the subframe (frame 1714) with the first kind of the subframe Time Division Multiplexing of Second Type.Channel estimating or measurement (frame 1716) can be carried out to the subframe of the first kind in this station.The subframe of the first kind can comprise reference signal, and channel estimating or measurement can be carried out based on reference signal in this station.Channel estimating and the measurement (frame 1718) of the subframe to Second Type can be skipped in this station.
Figure 18 shows the design of the device 1800 for carry out channel estimating or measurement at wireless communication system.Device 1800 comprises: for receiving the module 1812 of position mapping of the subframe of the mark first kind and the subframe of the Second Type different from the first kind; For receiving and the module 1814 of the subframe of the time-multiplexed first kind of subframe of Second Type; For the subframe of the first kind being carried out to the module 1816 of channel estimating or measurement; And for skipping the channel estimating of the subframe to Second Type and the module of measurement 1818.
Figure 19 shows the design for avoiding the reference signal of wireless communication system to cause the process 1900 of interference.Process 1900 can be carried out by base station or other certain entities.Base station can identify not by relay station for transmitting the resource (frame 1912) of reference signal.In one design, the resource identifying can comprise at least one the OFDM code element in the data division of MBSFN subframe.In another kind design, the resource identifying can comprise at least one Resource Block in the data division of MBSFN subframe.Base station can send control information and/or data (frame 1914) in the resource identifying.This can be avoided the reference signal from relay station to cause interference.
Figure 20 shows the design for avoiding the reference signal of wireless communication system to cause the device 2000 of interference.Device 2000 comprises: for identifying not by relay station for transmitting the module 2012 of resource of reference signal; And for being sent control information in the resource identifying by base station or data or the two module 2014.
Figure 21 shows the design for facilitated the process 2100 of the communication of first stop by second station at wireless communication system.Second station can be defined as the subframe (frame 2112) that first stop retains.Second station can not send transmission to allow first stop communicate by letter with one or more other stations (frame 2114) in the subframe being retained in retained subframe.In one design, first stop can be relay station, and second station can be base station, and these one or more other stations can be one or more UE.In another kind design, first stop can be base station, and second station can be relay station, and these one or more other stations can be one or more UE.
Figure 22 shows the design for facilitated the device 2200 of the communication of first stop by second station at wireless communication system.Device 2200 comprises: for being defined as the module 2212 of the subframe that first stop retains; And for making second station not send the module 2214 of transmission to allow first stop to communicate by letter with one or more other stations in retained subframe in the subframe being retained.
Module in Figure 16,18,20 and 22 can comprise processor, electronic equipment, hardware device, electronic building brick, logical circuit, memory, software code, firmware code etc. or its any combination.
Figure 23 illustrates the block diagram of the design of base station/eNB110, relay station 120 and UE130.Base station 110 can send transmission to one or more UE on down link, and can in up link, receive transmission from one or more UE.For the purpose of simplicity, below the processing of the transmission to sending to UE130 and receive from UE130 is only described.
At 110 places, base station, transmitting (TX) data processor 2310 can receive the packet that will send to UE130 and other UE, and can process according to selected MCS (for example, coding and modulation) each grouping to obtain data symbols.For HARQ, processor 2310 can generate multiple transmission of each grouping and a transmission can be once provided.Processor 2310 also can be controlled code element to obtain by processing control information, the reference symbols sn of generating reference signal, and multiplex data code element, control code element and reference symbols sn.Processor 2310 for example can further be processed, through multiplexing code element (, for OFDM etc.) to generate output sampling.Transmitter (TMTR) 2312 can be nursed one's health (for example, being transformed into simulation, amplification, filtering and up-conversion) these output samplings with generating downlink signal, and this signal can be transmitted to relay station 120 and UE.
At relay station 120 places, can be received and be provided for receiver (RCVR) 2336 from the down link signal of base station 110.Receiver 2336 can be nursed one's health (for example, filtering, amplification, down-conversion and digitlization), and this receives signal and input sample is provided.Receiving (RX) data processor 2338 can process input sample (for example, for OFDM etc.) and receive code element to obtain.Processor 2338 can further be processed (for example, demodulation code) and receive that code element is to recover to send to control information and the data of UE130.TX data processor 2330 can be identical with base station 110 mode processing (for example, coding and modulation) come the data that recover of self processor 2338 and control information to obtain data symbols and to control code element.Processor 2330 also can generating reference code element, by data with to control code element multiplexing with reference symbols sn, and processes through multiplexing code element and samples to obtain output.Transmitter 2332 can be nursed one's health these outputs and samples and generate downlink relay signal, and this signal can be transmitted to UE130.
At UE130 place, from the down link signal of base station 110 with can be received machine 2352 from the downlink relay signal of relay station 120 and receive and nurse one's health, and processed to recover to send to control information and the data of UE130 by RX data processor 2354.Controller/processor 2360 can generate the ACK information about the grouping being correctly decoded.The data that will send in up link and control information (for example, ACK message) can be processed and be nursed one's health to generate the uplink signal that can be transmitted to relay station 120 by transmitter 2358 by TX data processor 2356.
At relay station 120 places, can be received machine 2336 from the uplink signal of UE130 and receive and nurse one's health, and be processed the data and the control information that recover to be sent by UE130 by RX data processor 2338.The data that recover and control information can be processed and be launched machine 2332 by TX data processor 2330 and nurse one's health to generate the uplink relay signal that can be transmitted to base station 110.At 110 places, base station, can be received machine 2316 from the uplink signal of relay station 120 and receive and nurse one's health, and be processed to recover the data and the control information that are sent via relay station 120 by UE130 by RX data processor 2318.Controller/processor 2320 can the control information based on from UE130 carry out control data transmission.
Controller/processor 2320,2340 and 2360 can be distinguished the operation at direct base station 110, relay station 120 and UE130 place.The process 1900 in process 1500, the Figure 19 in Figure 15, the process 2100 in Figure 21 and/or other processes for technology described herein can be carried out or instruct to controller/processor 2320.Controller/processor 2340 can be carried out or instruction course 1500,1700 or 2100 and/or other processes for technology described herein.Controller/processor 2360 can be carried out or instruction course 1700 or 2100 and/or other processes for technology described herein.Memory 2322,2342 and 2362 can be respectively base station 110, relaying 120 and UE130 storage data and program code.
Those skilled in the art it will be appreciated that, information and signal can represent by any technology and skill in various different technologies and skill.For example, data, instruction, order, information, signal, position, code element and the chip that above description is quoted from the whole text can be represented by voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or optical particle or its any combination.
Those skilled in the art will further understand, and can be implemented as electronic hardware, computer software or both combinations in conjunction with disclosing described various illustrative box, module, circuit and algorithm steps herein.For clearly explaining orally this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step are done vague generalization with its functional form in the above and are described.This type of is functional is implemented as the design constraint that hardware or software depend on concrete application and puts on total system.Technical staff can realize for every kind of application-specific described functional by different way, but this type of design decision is not to be read as and causes departing from the scope of the present disclosure.
Can realize or carry out with any combination that general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete or transistor logic, discrete nextport hardware component NextPort or its are designed to carry out function described herein in conjunction with open various illustrative boxes, module and the circuit of describing herein.General processor can be microprocessor, but in alternative, processor can be processor, controller, microcontroller or the state machine of any routine.Processor can also be implemented as the combination of computing equipment, the combination of for example DSP and microprocessor, multi-microprocessor, with one or more microprocessor or any other this type of configuration of DSP central cooperation.
Can be embodied directly in hardware, in the software module of being carried out by processor or in the two combination and implement in conjunction with the step of the method for openly describing herein or algorithm.Software module can reside in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, removable dish, CD-ROM or any other form known in the art.Exemplary storage medium is coupled to processor so that this processor can be read and writing information from/to this storage medium.In alternative, storage medium can be integrated into processor.Processor and storage medium can reside in ASIC.ASIC can reside in user terminal.In alternative, processor and storage medium can be used as discrete assembly and reside in user terminal.
In one or more exemplary design, described function can realize in hardware, software, firmware or its any combination.If realized in software, each function can be used as one or more instructions or code storage on computer-readable medium or mat its transmit.Computer-readable medium comprises computer-readable storage medium and communication media, and it comprises any medium of facilitating computer program to shift to another ground from a ground.Storage medium can be can be by any usable medium of universal or special computer access.As example and non-limiting, such computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage apparatus, maybe can be used to carry or store instruction or data structure form expectation program code means and can be by any other medium of universal or special computer or universal or special processor access.Any connection is also by rights called computer-readable medium.For example, if software be use coaxial cable, fiber optic cables, twisted-pair feeder, digital subscribe lines (DSL) or the wireless technology such as infrared, radio and microwave from web website, server or other remote source transmission, this coaxial cable, fiber optic cables, twisted-pair feeder, DSL or the wireless technology such as infrared, radio and microwave are just included among the definition of medium.Dish and dish comprise compact disk (CD), laser disk, CD, digital universal disc (DVD), floppy disk and Blu-ray disc as used herein, and wherein dish often coils with the mode rendering data of magnetic with laser with optical mode rendering data.Above-mentioned combination also should be included in the scope of computer-readable medium.
Comprise subhead herein so that with reference to also assisting some chapters and sections of location.These subheads are not intended to limit in literary composition the scope in its lower concept of describing, and these concepts also can have applicability running through in entire description other chapters and sections all the time.
It is for making any person skilled in the art all can make or use the disclosure that the previous description to the disclosure is provided.To be all apparent for a person skilled in the art to various amendments of the present disclosure, and generic principles as defined herein can be applied to other variants and can not depart from spirit or scope of the present disclosure.Thus, the disclosure is not intended to be defined to example described herein and design, but should be awarded the widest scope consistent with principle disclosed herein and novel features.

Claims (12)

1. for a method for radio communication, comprising:
Mark is not used for transmitting the resource of reference signal by relay station; And
Sent control information in the resource identifying by base station or data or the two.
2. the method for claim 1, is characterized in that, described in the resource that identifies comprise at least one OFDM (OFDM) code element in the data division of multicast/broadcast Single Frequency Network (MBSFN) subframe.
3. the method for claim 1, is characterized in that, described in the resource that identifies comprise at least one Resource Block in the data division of multicast/broadcast Single Frequency Network (MBSFN) subframe.
4. for an equipment for radio communication, comprising:
For identifying not by relay station for transmitting the device of resource of reference signal; And
For being sent control information in the resource identifying by base station or data or the two device.
5. equipment as claimed in claim 4, is characterized in that, described in the resource that identifies comprise at least one OFDM (OFDM) code element in the data division of multicast/broadcast Single Frequency Network (MBSFN) subframe.
6. equipment as claimed in claim 4, is characterized in that, described in the resource that identifies comprise at least one Resource Block in the data division of multicast/broadcast Single Frequency Network (MBSFN) subframe.
7. for a method for radio communication, comprising:
Be defined as the subframe that first stop retains; And
Make second station in the subframe of described reservation, not send transmission to allow described first stop to communicate by letter with one or more other stations in the subframe of described reservation.
8. method as claimed in claim 7, is characterized in that, described first stop is relay station, and described second station is base station, and described one or more other stations are one or more subscriber's installation (UE).
9. method as claimed in claim 7, is characterized in that, described first stop is base station, and described second station is relay station, and described one or more other stations are one or more subscriber's installation (UE).
10. for an equipment for radio communication, comprising:
Be used for the device of the subframe that is defined as first stop reservation; And
For making second station not send the device of transmission to communicate by letter with one or more other stations in allowing the subframe of described first stop in described reservation in the subframe of described reservation.
11. equipment as claimed in claim 10, is characterized in that, described first stop is relay station, and described second station is base station, and described one or more other stations are one or more subscriber's installation (UE).
12. equipment as claimed in claim 10, is characterized in that, described first stop is base station, and described second station is relay station, and described one or more other stations are one or more subscriber's installation (UE).
CN201410145801.7A 2008-09-30 2009-09-29 It is related to the method and apparatus for supporting the technology of the operation of relays in wireless communication system Active CN103957075B (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US10165608P 2008-09-30 2008-09-30
US10157108P 2008-09-30 2008-09-30
US61/101,571 2008-09-30
US61/101,656 2008-09-30
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Families Citing this family (212)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8514954B1 (en) * 2008-03-04 2013-08-20 Microsoft Corporation Pilot design for wireless system
CN101534474B (en) * 2008-03-14 2015-06-03 中兴通讯股份有限公司 Method for configuring single frequency network multicast broadcast frame
US9065528B2 (en) * 2008-07-10 2015-06-23 Telefonaktiebolaget L M Ericsson (Publ) Insertion of signals by an intermediate device
KR101527978B1 (en) * 2008-08-06 2015-06-18 엘지전자 주식회사 Method and apparatus of communication using subframe between base station and relay
US8971241B2 (en) * 2008-09-30 2015-03-03 Qualcolmm Incorporated Techniques for supporting relay operation in wireless communication systems
KR101430491B1 (en) * 2008-10-10 2014-08-14 엘지전자 주식회사 Method for transmitting reference signals for relay node
US9203564B2 (en) * 2008-10-20 2015-12-01 Qualcomm Incorporated Data transmission via a relay station in a wireless communication system
US9031053B2 (en) * 2008-10-23 2015-05-12 Qualcomm Incorporated Method and apparatus for communicating in a relay communication network
US8634769B2 (en) * 2008-10-23 2014-01-21 Qualcomm Incorporated Data reception with interference cancellation in a relay communication network
CN101730115B (en) * 2008-10-24 2013-01-30 华为技术有限公司 Relay transmission method and device
KR101527977B1 (en) * 2008-10-27 2015-06-15 엘지전자 주식회사 Method of operating relay in wireless communication system
CA2743513C (en) * 2008-10-30 2016-11-22 Nortel Networks Limited Relay techniques suitable for user equipment in downlink
EP2182653A1 (en) * 2008-10-31 2010-05-05 Nokia Siemens Networks GmbH & Co. KG Method of transmitting data in a radio network, radio network and receiving station.
US20100110964A1 (en) * 2008-11-04 2010-05-06 Motorola, Inc. Method for Relays within Wireless Communication Systems
WO2010053339A2 (en) * 2008-11-10 2010-05-14 엘지전자주식회사 Method for performing a harq operation in a radio communications system, and method and apparatus for allocation of subframes
KR101012391B1 (en) 2008-11-11 2011-02-09 엘지전자 주식회사 Method for subframe allocation inforamtion to downlink in wireless communication system
KR101487562B1 (en) 2008-11-11 2015-01-30 엘지전자 주식회사 Method for relaying data in wireless communication system based on tdd
US8879461B2 (en) 2008-12-01 2014-11-04 Qualcomm Incorporated Blank subframe uplink design
KR101632440B1 (en) * 2008-12-03 2016-06-22 엘지전자 주식회사 Method of performing harq for relay station
US8848594B2 (en) * 2008-12-10 2014-09-30 Blackberry Limited Method and apparatus for discovery of relay nodes
US8514768B2 (en) * 2008-12-11 2013-08-20 Lg Electronics Inc. Method and apparatus for transmitting reference signal performed by relay station in wireless communication system
US8402334B2 (en) 2008-12-17 2013-03-19 Research In Motion Limited System and method for hybrid automatic repeat request (HARQ) functionality in a relay node
US8311061B2 (en) 2008-12-17 2012-11-13 Research In Motion Limited System and method for multi-user multiplexing
US8040904B2 (en) * 2008-12-17 2011-10-18 Research In Motion Limited System and method for autonomous combining
US8335466B2 (en) * 2008-12-19 2012-12-18 Research In Motion Limited System and method for resource allocation
US8446856B2 (en) 2008-12-19 2013-05-21 Research In Motion Limited System and method for relay node selection
KR101584814B1 (en) * 2008-12-23 2016-01-13 엘지전자 주식회사 Method and apparatus for transmitting scheduling request in wireless communication system
KR101470654B1 (en) * 2009-01-05 2014-12-09 엘지전자 주식회사 Method for relaying data in wireless communication system based on tdd
US20100177807A1 (en) * 2009-01-09 2010-07-15 Samsung Electronics Co., Ltd. Method and apparatus for relaying wireless traffic in a wireless network
KR101539777B1 (en) 2009-01-14 2015-08-07 엘지전자 주식회사 Method of transmitting backhaul signal in wireless communication system
KR101489516B1 (en) * 2009-01-22 2015-02-06 엘지전자 주식회사 Method of transmitting backhaul signal in wireless communication system comprising relay station
CN102308494B (en) * 2009-02-09 2014-12-17 Lg电子株式会社 Method for allocating backhaul link resources in relay communication system, and method & apparatus for transmitting & receiving data using same
KR101689597B1 (en) 2009-02-09 2016-12-26 엘지전자 주식회사 Method for transmitting reference signals in downlink multiple input multiple output
EP2398160B1 (en) * 2009-02-11 2018-11-21 LG Electronics Inc. Method for transmitting an uplink signal and feedback information, and relay apparatus using the method
KR101633516B1 (en) * 2009-02-13 2016-07-08 한국전자통신연구원 Relay system based on resource partitioning
US8879469B2 (en) * 2009-02-17 2014-11-04 Lg Electronics Inc. Method for transmitting/receiving data between a relay and a base station
WO2010095871A2 (en) * 2009-02-18 2010-08-26 엘지전자 주식회사 Signal transmitting/receiving method for a relay node, and relay node using the method
US8873463B2 (en) * 2009-02-19 2014-10-28 Lg Electronics Inc. Method and apparatus for transmitting/receiving data in a relay communication system
CN102326347B (en) 2009-02-20 2016-07-06 Lg电子株式会社 The method distributing the reference signal of back haul link in relay communications system and the method and apparatus using the method to send/receive data
US8811314B2 (en) * 2009-03-18 2014-08-19 Lg Electronics Inc. Method and apparatus for transmitting reference signal in wireless communication system
WO2010107267A2 (en) * 2009-03-18 2010-09-23 한국전자통신연구원 System for transmitting reference signal with information on state of channel
KR101472750B1 (en) 2009-04-01 2014-12-15 삼성전자주식회사 Communication system and method for mitigating interference in hierarchical cell structure
EP2418784B1 (en) * 2009-04-09 2019-06-19 LG Electronics Inc. Signal transmission method and apparatus in a relay communication system
WO2010118705A1 (en) * 2009-04-17 2010-10-21 大唐移动通信设备有限公司 Resource scheduling method and system, base station and relay node
US8477675B2 (en) * 2009-04-17 2013-07-02 Research In Motion Limited Multicast/broadcast single frequency network subframe physical downlink control channel design
KR101611300B1 (en) * 2009-04-21 2016-04-11 엘지전자 주식회사 Relay Node Communication Scheme Using Transmission Indicator
US8289895B2 (en) * 2009-04-24 2012-10-16 Research In Motion Limited Relay link HARQ operation
CN101877880A (en) * 2009-04-28 2010-11-03 中兴通讯股份有限公司 Method for solving conflict of system broadcast information of relay node
US9253651B2 (en) * 2009-05-01 2016-02-02 Qualcom Incorporated Transmission and detection of overhead channels and signals in a wireless network
WO2010137824A2 (en) * 2009-05-23 2010-12-02 엘지전자 주식회사 Method and apparatus for transmitting a signal in a wireless communication system
US8665775B2 (en) * 2009-05-24 2014-03-04 Lg Electronics Inc. Method and apparatus in which a relay station makes a hybrid automatic repeat request in a multi-carrier system
KR101600486B1 (en) * 2009-05-29 2016-03-07 엘지전자 주식회사 Method and apparatus for transmitting control information from relay node on backhaul uplink
CN105873125B (en) 2009-06-10 2021-01-12 太阳专利托管公司 Terminal device, base station device, communication method, and integrated circuit
US9014082B2 (en) * 2009-06-25 2015-04-21 Lg Electronics Inc. Method and device for signal transmission on a wireless communications system
TWI454082B (en) * 2009-06-29 2014-09-21 Htc Corp Method of handling mobile device mobility and related communication device
KR101770208B1 (en) * 2009-07-10 2017-08-22 엘지전자 주식회사 Method for sending an uplink control signal on a wireless communications system and a device therefor
US20110170474A1 (en) * 2009-07-15 2011-07-14 Ji Tingfang Method and apparatus for transparent relay hybrid automatic repeat request (harq)
US9144037B2 (en) 2009-08-11 2015-09-22 Qualcomm Incorporated Interference mitigation by puncturing transmission of interfering cells
EP2465212A1 (en) * 2009-08-14 2012-06-20 Nokia Siemens Networks OY Resource allocation scheme for a relay backhaul link
EP2293467B1 (en) * 2009-09-03 2012-11-07 Mitsubishi Electric R&D Centre Europe B.V. Method and a device for relaying symbols transferred by a source to a destination
WO2011028078A2 (en) * 2009-09-07 2011-03-10 엘지전자 주식회사 Channel status information feedback method and apparatus in wireless communication system with relay station
US9277566B2 (en) 2009-09-14 2016-03-01 Qualcomm Incorporated Cross-subframe control channel design
US8942192B2 (en) 2009-09-15 2015-01-27 Qualcomm Incorporated Methods and apparatus for subframe interlacing in heterogeneous networks
KR20110031111A (en) * 2009-09-18 2011-03-24 엘지전자 주식회사 Method and apparatus of establishing frame in wireless communication system including relay station
US8457079B2 (en) 2009-10-05 2013-06-04 Motorola Mobility Llc Method and apparatus for mitigating downlink control channel interference
US9204484B2 (en) * 2009-10-05 2015-12-01 Nokia Solutions And Networks Oy Apparatus and method for communication
IN2012DN03274A (en) * 2009-10-16 2015-10-23 Nokia Siemens Networks Oy
TWI486018B (en) * 2009-10-23 2015-05-21 Ind Tech Res Inst Transmission method for wireless relay system and relay station using the same
KR101729783B1 (en) * 2009-12-18 2017-04-25 엘지전자 주식회사 Method and apparatus of communicating with mobile station and basestation through frame in communication system including relay station
CN102123503B (en) * 2010-01-07 2016-02-10 中兴通讯股份有限公司 A kind of resource allocation methods of Physical Downlink Shared Channel of repeated link and device
US9179395B2 (en) * 2010-01-18 2015-11-03 Qualcomm Incorporated Method and apparatus for mitigating data loss during autonomous system information reading
WO2011093670A2 (en) * 2010-01-28 2011-08-04 Lg Electronics Inc. Method and apparatus for transmitting signal via relay backhaul link
KR101758272B1 (en) 2010-02-09 2017-07-17 엘지전자 주식회사 Method and apparatus of transmitting and receiving system information in a wireless system
CN102083228B (en) * 2010-02-11 2015-05-20 电信科学技术研究院 Random access method and equipment for relay system
WO2011102631A2 (en) * 2010-02-16 2011-08-25 Lg Electronics Inc. Relay node apparatus for transmitting and receiving signal according to link operation mode in wireless communication system and method thereof
WO2011100886A1 (en) * 2010-02-22 2011-08-25 中国移动通信集团公司 Method for supporting enhanced multimedia broadcast multicast service (embms), method and device for sending mbms control channel (mcch) modification notice
WO2011122833A2 (en) 2010-03-29 2011-10-06 Lg Electronics Inc. Method and apparatus for measurement for inter-cell interference coordination in radio communication system
JP5411782B2 (en) * 2010-04-05 2014-02-12 株式会社Ｎｔｔドコモ Base station apparatus, mobile terminal apparatus and communication control method
JP5249983B2 (en) * 2010-04-05 2013-07-31 株式会社エヌ・ティ・ティ・ドコモ Radio base station apparatus, mobile terminal apparatus and cell selection method
JP5315286B2 (en) * 2010-04-05 2013-10-16 株式会社エヌ・ティ・ティ・ドコモ Radio base station apparatus, radio relay station apparatus, and resource allocation method
US9226288B2 (en) 2010-04-13 2015-12-29 Qualcomm Incorporated Method and apparatus for supporting communications in a heterogeneous network
US9392608B2 (en) * 2010-04-13 2016-07-12 Qualcomm Incorporated Resource partitioning information for enhanced interference coordination
US20110249642A1 (en) 2010-04-13 2011-10-13 Qualcomm Incorporated Adaptive resource negotiation between base stations for enhanced interference coordination
US9271167B2 (en) * 2010-04-13 2016-02-23 Qualcomm Incorporated Determination of radio link failure with enhanced interference coordination and cancellation
US9125072B2 (en) 2010-04-13 2015-09-01 Qualcomm Incorporated Heterogeneous network (HetNet) user equipment (UE) radio resource management (RRM) measurements
KR101792508B1 (en) * 2010-04-14 2017-11-20 엘지전자 주식회사 Method for setting a search space for a relay node in a wireless communication system and apparatus for same
US8811359B2 (en) * 2010-04-15 2014-08-19 Qualcomm Incorporated Multiplexing of peer-to-peer (P2P) communication and wide area network (WAN) communication
CN102845091A (en) * 2010-04-16 2012-12-26 京瓷株式会社 Wireless communication system, high-power base station, low-power base station and communication control method
EP3125461A1 (en) * 2010-04-22 2017-02-01 LG Electronics Inc. Method and apparatus for channel estimation for radio link between a base station and a relay station
US9210736B2 (en) 2010-04-22 2015-12-08 Lg Electronics Inc. Method for transceiving signals between a base station and a relay node in a wireless communication system, and apparatus for same
BR112012024188A2 (en) * 2010-04-23 2016-07-05 Ericsson Telefon Ab L M uplink control channel interference mitigation in heterogeneous networks
CA2792763C (en) 2010-04-23 2016-08-16 Lg Electronics Inc. Method for transceiving signals between a base station and a relay node in a multiuser multi-antenna wireless communication system, and apparatus for same
CN102238122A (en) * 2010-04-26 2011-11-09 电信科学技术研究院 Data transmission method, system and device
US8917644B2 (en) * 2010-04-28 2014-12-23 Mitsubishi Electric Company Mobile communication system
US9166719B2 (en) * 2010-04-28 2015-10-20 Lg Electronics Inc. Method of transmitting and receiving signals in a mobile communication system using a radio frame including multiple types of subframes and apparatus thereof
US8824358B2 (en) 2010-04-29 2014-09-02 Lg Electronics Inc. Method and apparatus for transmitting and receiving signals between a base station and a relay node in a wireless communication system
CN102237990A (en) * 2010-04-30 2011-11-09 北京三星通信技术研究有限公司 Method for determining sequential relationship of hybrid-automatic repeat request of relay link
US9136997B2 (en) 2010-05-04 2015-09-15 Qualcomm Incorporated Methods and apparatuses for using channel state information reference signals
WO2011139114A2 (en) * 2010-05-07 2011-11-10 엘지전자 주식회사 Method for backhaul subframe setting between a base station and a relay node in a wireless communication system and a device therefor
WO2011142574A2 (en) * 2010-05-11 2011-11-17 엘지전자 주식회사 Method and device for receiving downlink signals
CN102264131B (en) * 2010-05-29 2015-03-11 华为技术有限公司 Method and device for transmitting data in wireless network
CN105471556B (en) * 2010-06-09 2018-12-04 Lg电子株式会社 Execute the method for HARQ processing and the device using this method
JP5533308B2 (en) * 2010-06-14 2014-06-25 日本電気株式会社 Relay device and synchronization maintaining method
JP2013534094A (en) * 2010-06-18 2013-08-29 聯發科技股▲ふん▼有限公司 Cooperative transmission method between communication devices and communication device using the same
US8730861B2 (en) * 2010-06-21 2014-05-20 Qualcomm Incorporated Rate matching for data and control channels in wireless communication systems
US20110310789A1 (en) * 2010-06-21 2011-12-22 Teck Hu Method of uplink control channel allocation for a relay backhaul link
JP5073786B2 (en) * 2010-06-21 2012-11-14 株式会社エヌ・ティ・ティ・ドコモ Mobile communication method and radio base station
US8824383B2 (en) 2010-06-22 2014-09-02 Telefonaktiebolaget L M Ericsson (Publ) Downlink scheduling in heterogeneous networks
EP2589162B1 (en) * 2010-06-30 2016-08-10 Telefonaktiebolaget LM Ericsson (publ) Reduction of interference in relay systems
GB2482183B (en) * 2010-07-23 2013-03-27 Sca Ipla Holdings Inc Cellular communication system, communication units, and method for broadcast and unicast communication
WO2012019348A1 (en) * 2010-08-12 2012-02-16 Nokia Corporation Configuring an uplink and downlink splitting pattern for device-to-device communication under a cellular network
US9025515B2 (en) * 2010-09-03 2015-05-05 Lg Electronics Inc. Method for transmitting signals in a communication system including a relay station
CN102404094B (en) * 2010-09-09 2014-04-09 中兴通讯股份有限公司 Processing method and device both for hybrid automatic retransmission requests
CN102404863B (en) * 2010-09-15 2016-08-24 上海无线通信研究中心 Time domain interference coordination method in hybrid network
CN102404833B (en) * 2010-09-17 2016-01-06 电信科学技术研究院 The method and apparatus avoided is disturbed in a kind of heterogeneous system
US9167599B2 (en) * 2010-09-22 2015-10-20 Motorola Solutions, Inc. Channel structure for non-contention based windows and contention based random access requests
KR101901927B1 (en) * 2010-09-28 2018-09-27 엘지전자 주식회사 Inter-cell interference coordination in a wireless communication system
TWI469580B (en) * 2010-09-28 2015-01-11 Hon Hai Prec Ind Co Ltd Cable modem and packet processing method
CN103141129A (en) * 2010-09-28 2013-06-05 富士通株式会社 Micro base station, micro base station interference coordination method, and user terminal
US9014024B2 (en) 2010-10-04 2015-04-21 Qualcomm Incorporated Devices for determining a reference subframe and determining a mode
MX2013003867A (en) * 2010-10-05 2013-06-24 Nokia Siemens Networks Oy Channel state information measurement and reporting.
CN103155660A (en) * 2010-10-06 2013-06-12 住友电气工业株式会社 Base station device
WO2012051756A1 (en) * 2010-10-20 2012-04-26 Nokia Corporation Shortened subframe format for fdd
US9204453B2 (en) 2010-10-29 2015-12-01 Qualcomm Incorporated Methods and apparatus for defining and using sequences for resource sets for enhanced inter-cell interference coordination
KR101835392B1 (en) * 2010-11-18 2018-03-08 삼성전자주식회사 Method and appratus for cell selection of user equipement in heterogeneous network
WO2012070914A2 (en) * 2010-11-25 2012-05-31 엘지전자 주식회사 Method and apparatus for transmitting a control channel and a data channel in a wireless communication system
WO2012082763A1 (en) 2010-12-16 2012-06-21 Powerwave Technologies, Inc. Improving data throughput for cell-edge users in a lte network using down-link repeaters and up-link harq relays
WO2012081798A1 (en) * 2010-12-16 2012-06-21 엘지전자 주식회사 Method and device for transmitting an uplink signal from a relay node to a base station in a wireless communication system
WO2012081812A1 (en) * 2010-12-16 2012-06-21 엘지전자 주식회사 Method and device for a relay node to transmit a sounding reference signal to a base station in a wireless communication system
CN102026209B (en) * 2010-12-21 2014-04-16 大唐移动通信设备有限公司 Method, system and device for transmitting information and configuring subframes
US20120163357A1 (en) * 2010-12-24 2012-06-28 Electronics And Telecommunications Research Institute Method of retransmitting and receiving packets in heterogeneous network environment
KR20120083970A (en) * 2011-01-19 2012-07-27 한국전자통신연구원 Apparatus and method for allocating radio resources in relay based mobile communication netwroks
WO2012099412A2 (en) * 2011-01-23 2012-07-26 엘지전자 주식회사 Method and apparatus for transmitting an uplink signal by a relay in a wireless communication system
EP2668735B1 (en) * 2011-01-28 2018-10-03 Nokia Solutions and Networks Oy Apparatus and method for communication
KR101913260B1 (en) * 2011-03-01 2018-10-30 엘지전자 주식회사 Method and apparatus for transmitting and receiving a signal through a relay node in a wireless communication system in which a carrier aggregation method is applied
US10051622B2 (en) * 2011-03-11 2018-08-14 Lg Electronics Inc. Method for setting dynamic subframe in wireless communication system and device therefor
JP5687933B2 (en) * 2011-03-25 2015-03-25 京セラ株式会社 COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND RELAY BASE STATION
CN102740463A (en) * 2011-03-31 2012-10-17 上海贝尔股份有限公司 Method, device, base station and user equipment for reducing interference in wireless communication system
KR101467806B1 (en) 2011-05-03 2014-12-03 엘지전자 주식회사 Method for transmitting control information in wireless communication system and device therefor
PL2705685T3 (en) * 2011-05-03 2015-09-30 Ericsson Telefon Ab L M Measurements performed by a wireless device
US9615275B2 (en) * 2011-05-03 2017-04-04 Samsung Electronics Co., Ltd. Method and apparatus for computing layer 2 load conditions in a wireless network environment
US9226248B2 (en) 2011-05-05 2015-12-29 Qualcomm Incorporated Managing reserved cells and user equipments in an MBSFN environment within a wireless communication system
US9515808B2 (en) * 2011-07-26 2016-12-06 Qualcomm Incorporated Transmission of control information in a wireless network with carrier aggregation
KR20130015655A (en) * 2011-08-04 2013-02-14 주식회사 팬택 Method and apparatus for avoiding collision of signal in comp system
CN103262596B (en) * 2011-08-05 2017-02-01 日电（中国）有限公司 Method and apparatus for indicating downlink channel measurement in a relaying system
GB2493784B (en) * 2011-08-19 2016-04-20 Sca Ipla Holdings Inc Wireless communications system and method
WO2013043008A2 (en) * 2011-09-23 2013-03-28 엘지전자 주식회사 Method and apparatus for random accessing in wireless communication system
US9374808B2 (en) 2011-09-23 2016-06-21 Lg Electronics Inc. Method for transmitting control information and apparatus for same
KR101979850B1 (en) 2011-09-23 2019-08-28 엘지전자 주식회사 Method for transmitting control information and apparatus therefore
US9148272B2 (en) * 2011-09-26 2015-09-29 Lg Electronics Inc. Method and apparatus for transceiving signals
US9204316B2 (en) 2011-09-30 2015-12-01 Blackberry Limited Enhancement and improvement for hetnet deployments
US9554368B2 (en) 2011-10-10 2017-01-24 Lg Electronics Inc. Method and apparatus for transceiving control information in a wireless communication system
US8976764B2 (en) * 2011-11-04 2015-03-10 Blackberry Limited Accommodating semi-persistent scheduling in heterogeneous networks with restricted subframe patterns
US8885509B2 (en) 2011-11-04 2014-11-11 Blackberry Limited Paging in heterogeneous networks using restricted subframe patterns
US9681456B2 (en) 2011-12-15 2017-06-13 Lg Electronics Inc. Method for reducing interference of user equipment in wireless access system, and the user equipment for the same
US20130182680A1 (en) * 2012-01-18 2013-07-18 Electronics And Telecommunications Research Institute Method for machine type communication user equipment to connect to evolved node-b and apparatus employing the same
US20130242766A1 (en) * 2012-03-14 2013-09-19 Qualcomm Incorporated Pre-sib2 channel estimation and signal processing in the presence of mbsfn for lte
WO2013134948A1 (en) * 2012-03-16 2013-09-19 Telefonaktiebolaget L M Ericsson (Publ) Methods for reliable reception of harq feedback information in heterogeneous deployments
CN103326840A (en) * 2012-03-23 2013-09-25 电信科学技术研究院 Method, system and device for time division duplex communication
US9143984B2 (en) * 2012-04-13 2015-09-22 Intel Corporation Mapping of enhanced physical downlink control channels in a wireless communication network
SG11201406754XA (en) * 2012-04-22 2014-11-27 Elta Systems Ltd Apparatus and methods for moving relay interference mitigation in mobile e.g. cellular communication networks
US9516594B2 (en) 2012-04-27 2016-12-06 Qualcomm Incorporated Method and apparatus for signaling in dense network operations
US20130294359A1 (en) * 2012-05-02 2013-11-07 Industrial Technology Research Institute Method of Handling Resource Allocation in TDD System and Related Communication Device
US9635645B2 (en) 2012-05-02 2017-04-25 Industrial Technology Research Institute Method of handling resource allocation in TDD system and related communication device
US9967112B2 (en) * 2012-05-03 2018-05-08 Apple Inc. Apparatus and methods for adaptively resuming radio channel estimation
JP2013251860A (en) 2012-06-04 2013-12-12 Ntt Docomo Inc Communication control method, wireless communication system, wireless base station and user terminal
US9935699B2 (en) 2012-06-22 2018-04-03 Samsung Electronics Co., Ltd. Communication method and apparatus using beamforming in a wireless communication system
CN104247469B (en) * 2012-08-17 2019-04-05 华为技术有限公司 The downlink data transmission method and device of multi-user Cooperation communication
US20140098754A1 (en) * 2012-10-09 2014-04-10 Qualcomm Incorporated Methods and apparatus for improved resource management in lte
GB2509145B (en) * 2012-12-21 2015-06-03 Broadcom Corp Assigning resources between an intermediate node and a station
WO2014142628A2 (en) * 2013-03-15 2014-09-18 Lg Electronics Inc. Method and apparatus for performing synchronization in wireless communication system
US9137642B2 (en) * 2013-03-20 2015-09-15 Google Inc. Multi-cast optimized medium access method for wireless network
CN104104426B (en) * 2013-04-12 2018-02-16 成都鼎桥通信技术有限公司 A kind of interior trunking method of band based on symmetrical spectrum
GB2529595A (en) * 2013-05-08 2016-02-24 Zte Wistron Telecom Ab Using a geometry indicator in hetnet deployments
KR20140135331A (en) * 2013-05-15 2014-11-26 삼성전자주식회사 Method and apparatus of operation for dynamic time division duplex in wireless communication system
CN104219021A (en) * 2013-05-31 2014-12-17 中兴通讯股份有限公司 Downlink data transmission method, apparatus, and system for virtual multi-antenna system
CN104219023B (en) * 2013-05-31 2019-05-31 上海朗帛通信技术有限公司 Communication means and device in a kind of D2D system
CN105612709B (en) 2013-08-09 2019-06-04 太阳专利信托公司 Mobile station, method and storage medium for communicating with base station in communication system
CN103701733B (en) * 2013-09-28 2017-03-01 河北工业大学 A kind of method of TD LTE relay system offset estimation
US9749120B2 (en) * 2014-01-30 2017-08-29 Telefonaktiebolaget Lm Ericsson (Publ) Uplink/downlink switching in half-duplex frequency division duplex communication
US10693623B2 (en) 2014-01-31 2020-06-23 Apple Inc. Reference subframes for synchronization and cell measurements
CN104918227B (en) * 2014-03-10 2019-02-01 华为技术有限公司 The method that base station returns in communication equipment and long evolving system
KR101925698B1 (en) 2014-03-25 2018-12-05 텔레폰악티에볼라겟엘엠에릭슨(펍) System and method for beam-based physical random-access
ES2762571T3 (en) * 2014-04-29 2020-05-25 Lg Electronics Inc Procedure and device by which a device-to-device type user equipment transmits data in a wireless communication system
US10057885B2 (en) * 2014-09-26 2018-08-21 Htc Corporation Device and method of handling transmission in unlicensed band
US10645681B2 (en) 2014-10-20 2020-05-05 Qualcomm Incorporated Control channel design for machine type communications
EP3216287A4 (en) * 2014-11-07 2018-07-04 Alcatel Lucent Method for assisting data transmission on first carrier by indicating termination point of data transmission
WO2016085379A1 (en) * 2014-11-24 2016-06-02 Telefonaktiebolaget Lm Ericsson (Publ) Transmission and reception in a determined third set of time-frequency resources
US20160226628A1 (en) * 2015-01-30 2016-08-04 Huawei Technologies Co., Ltd. System and method for data retransmission
JP6377184B2 (en) * 2015-02-09 2018-08-22 三菱電機株式会社 Communication device
US20170048717A1 (en) 2015-08-13 2017-02-16 Samsung Electronics Co., Ltd. Method and apparatus for communication in wireless communication system
WO2017049413A1 (en) * 2015-09-24 2017-03-30 Sierra Wireless, Inc. Method and system for transmitting control information for user equipment
CN106685581B (en) * 2015-11-06 2021-09-28 北京三星通信技术研究有限公司 Transmission method of physical uplink shared channel and user equipment
US10440688B2 (en) * 2016-01-14 2019-10-08 Samsung Electronics Co., Ltd. Frame structures and signaling techniques for a unified wireless backhaul and access network
CN107343317B (en) 2016-04-29 2022-12-30 华为技术有限公司 Subframe configuration method and device
US10645689B2 (en) * 2016-08-11 2020-05-05 Qualcomm Incorporated Link establishment in a wireless backhaul network using radio access technology
US10708007B2 (en) * 2017-01-05 2020-07-07 Qualcomm Incorporated Methods and apparatuses for indication of transmission preemption based on a hybrid automatic repeat request configuration
US10367624B2 (en) * 2017-03-01 2019-07-30 Qualcomm Incorporated Uplink multi-bits acknowledgement for self contained transmissions
CN110583056B (en) 2017-05-04 2022-01-14 夏普株式会社 User equipment, base station device, and communication method
WO2018203616A1 (en) 2017-05-05 2018-11-08 엘지전자 주식회사 Method for receiving synchronization signal, and device therefor
US11025403B2 (en) * 2017-07-12 2021-06-01 Qualcomm Incorporated Frame structure dependent configuration of physical channels
US20190021084A1 (en) 2017-07-12 2019-01-17 Futurewei Technologies, Inc. System And Method For Backhaul and Access In Beamformed Communications Systems
US11165488B2 (en) * 2017-11-08 2021-11-02 Qualcomm Incorporated Enhanced internet of things relay data re-transmission
US10863334B2 (en) * 2017-11-08 2020-12-08 Qualcomm Incorporated Non-orthogonal multiple access techniques for narrowband internet of things and machine type communication
CN108601079B (en) * 2018-04-04 2021-11-23 中兴通讯股份有限公司 Timing method, timing device, communication node equipment and computer storage medium
WO2020028993A1 (en) 2018-08-09 2020-02-13 Sierra Wireless, Inc. Method and apparatus for multi-transport block grant transmissions
US20210037574A1 (en) * 2019-08-01 2021-02-04 Qualcomm Incorporated Power saving of smart repeaters
US11924753B2 (en) 2019-08-01 2024-03-05 Qualcomm Incorporated Power saving of smart repeaters based on a triggering signal
US11219051B2 (en) * 2019-08-15 2022-01-04 At&T Intellectual Property I, L.P. Pre-emptive triggering for integrated access and backhaul for 5G or other next generation network
EP4038947A4 (en) 2019-10-03 2023-10-04 Sierra Wireless, Inc. Method and apparatus for facilitating transmissions in a wireless communication system
US11575472B2 (en) 2020-02-27 2023-02-07 Sierra Wireless, Inc. Methods and apparatuses for supporting multi transport block grant data transmission
US11632271B1 (en) 2022-02-24 2023-04-18 T-Mobile Usa, Inc. Location-based channel estimation in wireless communication systems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101127665A (en) * 2006-08-18 2008-02-20 富士通株式会社 Wireless communication device and method
WO2008020164A1 (en) * 2006-08-18 2008-02-21 Fujitsu Limited Communication systems
CN101132601A (en) * 2007-09-18 2008-02-27 北京邮电大学 Multi-frequency point TD-SCDMA group network and communication implementing method based on relaying technology
WO2008024578A2 (en) * 2006-08-23 2008-02-28 Motorola, Inc. Downlink control channel signaling in wireless communication systems
US20080084371A1 (en) * 2006-10-05 2008-04-10 Au Optronics Corp. Liquid crystal display for preventing residual image phenomenon and related method thereof
CN101222272A (en) * 2008-01-28 2008-07-16 中兴通讯股份有限公司 Signal transmission method of physical descending control channel in descending pilot frequency time slot
CN101227260A (en) * 2008-01-30 2008-07-23 中兴通讯股份有限公司 Method for sending physics combining retransmission indicating channel signal in downlink pilot frequency time slot

Family Cites Families (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98426C (en) * 1994-05-03 1997-06-10 Nokia Mobile Phones Ltd Systems for transmitting packet data in the air interface within a digital TMDA cellular system
US5553070A (en) * 1994-09-13 1996-09-03 Riley; Robert E. Data link module for time division multiplexing control systems
US5546394A (en) * 1994-12-09 1996-08-13 Motorola, Inc. Message fragmenting in a time diversity radio system
US5648958A (en) * 1995-04-05 1997-07-15 Gte Laboratories Incorporated System and method for controlling access to a shared channel for cell transmission in shared media networks
AT406533B (en) * 1995-06-26 2000-06-26 Ericsson Austria Ag METHOD FOR BIDIRECTIONAL DATA TRANSFER VIA A TWO-WIRE LINE
US5825811A (en) * 1997-01-16 1998-10-20 Motorola, Inc. Method and apparatus for facilitating inbound channel access
JPH10336147A (en) * 1997-06-03 1998-12-18 Oki Electric Ind Co Ltd Cdma transmitter-receiver and transmission rate varying method
US6285665B1 (en) * 1997-10-14 2001-09-04 Lucent Technologies Inc. Method for establishment of the power level for uplink data transmission in a multiple access system for communications networks
US7184426B2 (en) * 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US6574211B2 (en) * 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
JP2000022628A (en) * 1998-07-01 2000-01-21 Matsushita Electric Ind Co Ltd Communication method and communication system
US6704489B1 (en) * 1999-05-06 2004-03-09 Matsushita Electric Industrial Co., Ltd. Resource management system and digital video reproducing/recording apparatus
US6285662B1 (en) * 1999-05-14 2001-09-04 Nokia Mobile Phones Limited Apparatus, and associated method for selecting a size of a contention window for a packet of data system
JP2001169330A (en) * 1999-10-22 2001-06-22 Hyundai Electronics Ind Co Ltd Mobile communication system and hand-off processing method between asynchronous base station and synchronous base station in the system
KR100693911B1 (en) * 2000-04-06 2007-03-12 엔티티 도꼬모 인코퍼레이티드 Multicasting method, multicasting system, mobile station and base station
US7088701B1 (en) * 2000-04-14 2006-08-08 Qualcomm, Inc. Method and apparatus for adaptive transmission control in a high data rate communication system
US7519011B2 (en) * 2000-09-29 2009-04-14 Intel Corporation Frame structure for radio communications system
KR100662283B1 (en) 2000-11-20 2007-01-02 엘지전자 주식회사 Method for Accessing randomly in Time Division Duplex Mode
KR20020056986A (en) 2000-12-30 2002-07-11 박태진 Modulator and demodulator using dispersed pilot subchannel and ofdm frame structure in orthogonal frequency division multiplexing system
KR100469711B1 (en) * 2001-01-18 2005-02-02 삼성전자주식회사 Apparatus and method for controlling reverse transmission in mobile communication system
US6625172B2 (en) 2001-04-26 2003-09-23 Joseph P. Odenwalder Rescheduling scheduled transmissions
JP3887547B2 (en) * 2001-06-25 2007-02-28 株式会社エヌ・ティ・ティ・ドコモ Mobile station, base station, mobile communication system, mobile communication method, and mobile communication program
US20030052909A1 (en) * 2001-06-25 2003-03-20 Arcsoft, Inc. Real-time rendering of edited video stream
JP4318412B2 (en) * 2001-08-08 2009-08-26 富士通株式会社 Transmission / reception apparatus and transmission / reception method in communication system
US7372837B2 (en) * 2001-10-26 2008-05-13 Texas Instrument Incorporated Incremental redundancy using two stage rate matching for automatic repeat request to obtain high speed transmission
KR100474719B1 (en) * 2001-11-30 2005-03-08 삼성전자주식회사 Apparatus and method for transmitting and receiving control information in mobile telecommunication system
US7126996B2 (en) * 2001-12-28 2006-10-24 Motorola, Inc. Adaptive transmission method
JP3561510B2 (en) * 2002-03-22 2004-09-02 松下電器産業株式会社 Base station apparatus and packet transmission method
JP2004187099A (en) * 2002-12-04 2004-07-02 Shinko Electric Ind Co Ltd Communication control method, communication system and communication equipment
US7209978B2 (en) * 2002-12-13 2007-04-24 Cisco Technology, Inc. Arrangement in a router of a mobile network for optimizing use of messages carrying reverse routing headers
JP4015939B2 (en) * 2002-12-17 2007-11-28 株式会社エヌ・ティ・ティ・ドコモ Packet communication method, base station, mobile station, and packet communication program
US7161957B2 (en) * 2003-02-10 2007-01-09 Thomson Licensing Video packets over a wireless link under varying delay and bandwidth conditions
US7535876B2 (en) * 2003-04-01 2009-05-19 Alcatel-Lucent Usa Inc. Method of flow control for HSDPA and HSUPA
US8477592B2 (en) 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
KR20040105458A (en) 2003-06-09 2004-12-16 삼성전자주식회사 Device and Method for Controlling Reverse Transmission Rate in Mobile Communication System
US20050050427A1 (en) * 2003-08-29 2005-03-03 Gibong Jeong Method of rate matching for link adaptation and code space management
US7606138B2 (en) * 2003-09-29 2009-10-20 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Multi-symbol encapsulated OFDM system
WO2005046125A1 (en) * 2003-10-28 2005-05-19 Docomo Communications Laboratories Usa, Inc. Method for supporting scalable and reliable multicast in tdma/tdd systems using feedback suppression techniques
US8498650B2 (en) 2003-12-05 2013-07-30 Qualcomm Incorporated Systems and methods for adaptively allocating resources between a dedicated reference signal and a traffic signal
KR100584090B1 (en) 2003-12-27 2006-05-29 한국전자통신연구원 A method for pre-processing for an uplink of OFDM communication system
US7397759B2 (en) 2004-03-15 2008-07-08 Microsoft Corporation Response for spurious timeout
KR101108038B1 (en) * 2004-05-10 2012-01-25 엘지전자 주식회사 Method of Providing Base Station Information for Handover in Broadband Wireless Access System
US20050259629A1 (en) * 2004-05-24 2005-11-24 Neal Oliver Adapting uplink/downlink subframe ratio in time division duplex physical frames
JP4012172B2 (en) 2004-05-28 2007-11-21 株式会社東芝 Wireless communication apparatus and wireless communication method
GB2417862B (en) 2004-09-01 2009-09-09 Samsung Electronics Co Ltd Adaptive ARQ system
JP2006129341A (en) * 2004-11-01 2006-05-18 Oki Electric Ind Co Ltd Transparent data transmitting method
JP4756314B2 (en) * 2005-01-05 2011-08-24 日本電気株式会社 Communication control method, radio communication system, mobile station, base station, and base station control apparatus.
JP4695893B2 (en) 2005-02-17 2011-06-08 パナソニック株式会社 How to determine the measurement period
CN101124751B (en) * 2005-02-18 2011-04-13 松下电器产业株式会社 Wireless communication method, relay station apparatus, and wireless transmitting apparatus
US20060281417A1 (en) * 2005-05-10 2006-12-14 Ntt Docomo, Inc. Transmission rate control method and mobile station
TWI311705B (en) * 2005-05-23 2009-07-01 Via Tech Inc Peripheral component interconnect express and changing method of link power states thereof
US8289952B2 (en) * 2005-05-25 2012-10-16 Telefonaktiebolaget Lm Ericsson (Publ) Enhanced VoIP media flow quality by adapting speech encoding based on selected modulation and coding scheme (MCS)
US8654712B2 (en) 2005-06-16 2014-02-18 Qualcomm Incorporated OFDMA reverse link scheduling
JP4641877B2 (en) 2005-06-28 2011-03-02 シャープ株式会社 Transmission control method, terminal-side transmission method, interference power measurement method, control station apparatus, and terminal apparatus
RU2388188C2 (en) * 2005-08-05 2010-04-27 Нокиа Корпорейшн Up-link dynamic strobing for increasing transmission capacity
JP4951274B2 (en) * 2005-08-19 2012-06-13 韓國電子通信研究院 CHANNEL INFORMATION GENERATION APPARATUS AND METHOD, AND APPLICABLE TRANSMISSION APPARATUS AND METHOD THEREOF
US20070049305A1 (en) * 2005-08-25 2007-03-01 Lucent Technologies, Inc. Method for adjusting timing of channels in a wireless communications system
US7729665B2 (en) * 2005-09-28 2010-06-01 Samsung Electronics Co., Ltd. Down-link data transmission and receiving system and method of ARQ in wireless communication system
US7613146B2 (en) * 2005-09-30 2009-11-03 Robert Bosch Gmbh Method and system for reliable data transmission in wireless networks
KR101002878B1 (en) 2005-09-30 2010-12-21 후아웨이 테크놀러지 컴퍼니 리미티드 Wireless relay communication system and method
JP4854671B2 (en) 2005-10-07 2012-01-18 パナソニック株式会社 Radio communication base station apparatus and pilot transmission method
US8284777B2 (en) 2005-10-17 2012-10-09 Telefonaktiebolaget Lm Ericsson (Publ) Uplink cell changes in a mobile communication network
US7475901B2 (en) * 2005-12-12 2009-01-13 Lifetime Products, Inc. Trailer
US7738325B2 (en) * 2005-12-27 2010-06-15 Mediatek Inc. Reading and writing methods and apparatus for Blu-Rays discs
KR100898050B1 (en) 2006-01-03 2009-05-19 삼성전자주식회사 Apparatus and method for transparent relay in multi-hop relay cellular network
US20070155315A1 (en) 2006-01-03 2007-07-05 Samsung Electronics Co., Ltd. Apparatus and method for transparent relaying in a multi-hop relay cellular network
JP2009524323A (en) * 2006-01-17 2009-06-25 ノキア コーポレイション HARQ system with excellent bandwidth efficiency in relay networks
US9326221B2 (en) 2006-01-26 2016-04-26 Nokia Technologies Oy Method and system for signaling neighboring signals in TPS bits
WO2007088854A1 (en) * 2006-01-31 2007-08-09 Matsushita Electric Industrial Co., Ltd. Radio communication system, radio transmission device, and rach transmission method
WO2007093037A1 (en) * 2006-02-13 2007-08-23 Belair Networks Inc. System and method for packet timing of circuit emulation services over networks
EP1989852B1 (en) 2006-02-27 2017-05-24 Telefonaktiebolaget LM Ericsson (publ) Flow control mechanism using local and global acknowledgements
WO2007133022A1 (en) 2006-05-11 2007-11-22 Samsung Electronics Co., Ltd. Apparatus and method for providing relay link zone information in a multi-hop relay broadband wireless access communication system
EP1863210B1 (en) 2006-05-29 2012-07-18 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
US7801168B2 (en) * 2006-06-21 2010-09-21 Intel Corporation Systems and methods for multi-slotted power saving multiple polling in wireless communications
US7760694B2 (en) * 2006-07-19 2010-07-20 Intel Corporation Deviating from a transmission map to communicate in a wireless network
US9143288B2 (en) * 2006-07-24 2015-09-22 Qualcomm Incorporated Variable control channel for a wireless communication system
GB2440984A (en) 2006-08-18 2008-02-20 Fujitsu Ltd Wireless multi-hop communication system
US8042018B2 (en) 2006-08-18 2011-10-18 Samsung Electronics Co., Ltd Method and apparatus for transmitting/receiving ACK/NACK in a frequency division multiple access system
GB2440985A (en) * 2006-08-18 2008-02-20 Fujitsu Ltd Wireless multi-hop communication system
GB2443466A (en) 2006-11-06 2008-05-07 Fujitsu Ltd Relay station for multi-hop communication system
WO2008024282A2 (en) 2006-08-21 2008-02-28 Interdigital Technology Corporation Method and apparatus for controlling arq and harq transmissions and retranmissions in a wireless communication system
US8295243B2 (en) * 2006-08-21 2012-10-23 Qualcomm Incorporated Method and apparatus for random access in an orthogonal multiple-access communication system
DK2271165T3 (en) 2006-08-21 2013-10-14 Interdigital Tech Corp Dynamic resource allocation, scheduling and signaling for a variable data rate service in LTE
US8848618B2 (en) * 2006-08-22 2014-09-30 Qualcomm Incorporated Semi-persistent scheduling for traffic spurts in wireless communication
US8363605B2 (en) * 2006-08-22 2013-01-29 Qualcomm Incorporated Method and apparatus for monitoring grant channels in wireless communication
WO2008025040A2 (en) 2006-08-25 2008-02-28 Qualcomm Incorporated Cdma wireless communication systems
JP4845644B2 (en) * 2006-08-29 2011-12-28 三洋電機株式会社 COMMUNICATION METHOD AND RADIO DEVICE USING THE SAME
US20080068979A1 (en) 2006-09-14 2008-03-20 Motorola, Inc. Adaptive and preemptive scheduling of transmissions
CN101548481B (en) 2006-09-19 2016-08-03 中兴通讯美国公司 The frame structure of the multi-hop relay in wireless communication system
US20080108355A1 (en) * 2006-11-03 2008-05-08 Fujitsu Limited Centralized-scheduler relay station for mmr extended 802.16e system
US7990906B2 (en) 2006-11-03 2011-08-02 Fujitsu Semiconductor Limited Frame structure for a relay station operating in mobile networks
GB2443465A (en) 2006-11-06 2008-05-07 Fujitsu Ltd Communication systems
US7983302B2 (en) 2006-11-07 2011-07-19 Nokia Corporation Control signaling techniques for wireless networks
JPWO2008056774A1 (en) 2006-11-10 2010-02-25 パナソニック株式会社 Wireless communication mobile station apparatus and MCS selection method
WO2008070007A2 (en) * 2006-12-01 2008-06-12 Nortel Networks Limited Enhancing wimax performance with subscriber stations acting as ad hoc repeaters
US20080144612A1 (en) * 2006-12-13 2008-06-19 Nokia Corporation Flexible radio resource sharing in time and frequency domains among TDD communication systems
US7756102B2 (en) * 2007-01-04 2010-07-13 Palo Alto Research Center Incorporated Distributed determination of dynamic frame sizes in a network
KR100923159B1 (en) 2007-01-08 2009-10-23 한국전자통신연구원 Packet Data Transmission and Receiving in Packet based Mobile Communication System
EP1942588B1 (en) * 2007-01-08 2017-08-30 Samsung Electronics Co., Ltd. Apparatus and method for transmitting frame information in multi-hop relay broadband wireless communication system
WO2008093233A2 (en) 2007-02-02 2008-08-07 Lg Electronics Inc. Methods of transmitting and receiving data in communication system
US8345620B2 (en) 2007-02-08 2013-01-01 Qualcomm Incorporated Method and apparatus for frequency hopping with frequency fraction reuse
JP4762260B2 (en) 2007-02-27 2011-08-31 三星電子株式会社 Apparatus and method for transmitting control message in wireless communication system using relay system
US8670704B2 (en) * 2007-03-16 2014-03-11 Qualcomm Incorporated Pilot transmission by relay stations in a multihop relay communication system
US8417255B2 (en) * 2007-03-16 2013-04-09 Qualcomm Incorporated Data transmission and power control in a multihop relay communication system
EP3487113B1 (en) 2007-03-19 2021-10-06 LG Electronics Inc. A resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system
US8300658B2 (en) 2007-03-21 2012-10-30 Motorola Mobility Llc Apparatuses and methods for multi-antenna channel quality data acquisition in a broadcast/multicast service network using a multicast symbol
US8532073B2 (en) * 2007-03-26 2013-09-10 Lg Electronics Inc. Discontinuous reception operation during continuous transmission
EP2140647A4 (en) 2007-03-28 2014-05-21 Ericsson Telefon Ab L M Measurement of cell-specific reference symbols in the presence of mbms single frequency network transmissions
US20080247354A1 (en) 2007-04-03 2008-10-09 Institute For Information Industry Method, wireless communication system, tangible machine-readable medium, and communication apparatus for transmitting uplink hybrid automatic repeat request packets based on a multi-hop relay standard
KR20080092222A (en) * 2007-04-11 2008-10-15 엘지전자 주식회사 Data transmission method in tdd system
CN100574175C (en) 2007-05-25 2009-12-23 华为技术有限公司 The method and apparatus that obtains the method and system of high-speed uplink packet scheduling capacity and obtain link effective data rate
US8201041B2 (en) 2007-07-03 2012-06-12 Industrial Technology Research Institute Transmission control methods and devices for communication systems
US20090031185A1 (en) 2007-07-23 2009-01-29 Texas Instruments Incorporated Hybrid arq systems and methods for packet-based networks
US8098623B2 (en) * 2007-10-03 2012-01-17 Telefonaktiebolaget Lm Ericsson Telecommunications frame structure accomodating differing formats
US7953049B2 (en) * 2007-10-22 2011-05-31 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for allocating receiver resources based on delay
US7649839B2 (en) * 2007-11-21 2010-01-19 Motorola, Inc. Method and device for managing data rate in a communication system
US20090135807A1 (en) 2007-11-27 2009-05-28 Shweta Shrivastava Persistent scheduling of harq retransmissions
US8774141B2 (en) 2007-12-07 2014-07-08 Blackberry Limited Multicast broadcast single frequency network data scheduling and handling
KR101406321B1 (en) * 2007-12-17 2014-06-12 한국전자통신연구원 The method for transmitting signals and relay station
WO2009082310A1 (en) * 2007-12-21 2009-07-02 Telefonaktiebolaget Lm Ericsson (Publ) Tti channel arrangement and ue to channel assignment
US7920494B2 (en) * 2008-01-04 2011-04-05 Motorola Mobility, Inc. Method and apparatus for performing mobility measurements in a communication network
DE112008003708B4 (en) * 2008-02-14 2015-09-10 Intel Mobile Communications GmbH Method for transmitting data and communication device
EP2365721B1 (en) * 2008-02-15 2014-09-10 BlackBerry Limited Apparatuses and methods for assignment and allocation of mixed-type combinations of slots
US8184579B2 (en) * 2008-02-15 2012-05-22 Texas Instruments Incorporated ACK/NAK repetition schemes in wireless networks
US8780798B2 (en) 2008-03-05 2014-07-15 Telefonaktiebolaget L M Ericsson (Publ) Method and devices for providing enhanced signaling
KR100905385B1 (en) * 2008-03-16 2009-06-30 엘지전자 주식회사 Method for effective transmission of a control signal in a wireless communication system
WO2009116917A1 (en) 2008-03-18 2009-09-24 Telefonaktiebolaget L M Ericsson (Publ) A method and a transceiver for harq failure detection
US8300544B2 (en) * 2008-07-11 2012-10-30 Broadcom Corporation Wireless subscriber uplink (UL) grant size selection
EP2313990B1 (en) 2008-08-12 2018-05-23 BlackBerry Limited Enabling downlink transparent relay in a wireless communications network
US8578232B2 (en) 2008-08-19 2013-11-05 Telefonaktiebolaget Lm Ericsson (Publ) HARQ process continuation after CQI-only report
US8953467B2 (en) 2008-09-08 2015-02-10 Nokia Corporation Adaptive transmission modes for transparent relay
US8155222B2 (en) 2008-09-16 2012-04-10 Futurewei Technologies, Inc. Method and apparatus for transmitting and receiving control information in a wireless communication system
US8971241B2 (en) * 2008-09-30 2015-03-03 Qualcolmm Incorporated Techniques for supporting relay operation in wireless communication systems
US9203564B2 (en) * 2008-10-20 2015-12-01 Qualcomm Incorporated Data transmission via a relay station in a wireless communication system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101127665A (en) * 2006-08-18 2008-02-20 富士通株式会社 Wireless communication device and method
WO2008020164A1 (en) * 2006-08-18 2008-02-21 Fujitsu Limited Communication systems
WO2008024578A2 (en) * 2006-08-23 2008-02-28 Motorola, Inc. Downlink control channel signaling in wireless communication systems
US20080084371A1 (en) * 2006-10-05 2008-04-10 Au Optronics Corp. Liquid crystal display for preventing residual image phenomenon and related method thereof
CN101132601A (en) * 2007-09-18 2008-02-27 北京邮电大学 Multi-frequency point TD-SCDMA group network and communication implementing method based on relaying technology
CN101222272A (en) * 2008-01-28 2008-07-16 中兴通讯股份有限公司 Signal transmission method of physical descending control channel in descending pilot frequency time slot
CN101227260A (en) * 2008-01-30 2008-07-23 中兴通讯股份有限公司 Method for sending physics combining retransmission indicating channel signal in downlink pilot frequency time slot

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